EXHIBIT 3.16
 
                                    BY-LAWS
 
                                      OF
 
                           R. H. MAXWELL & CO., INC.
 
                           (A DELAWARE CORPORATION)
 
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                                   ARTICLE I
 
                                 STOCKHOLDERS
 
  1. CERTIFICATES REPRESENTING STOCK. Every holder of stock in the corporation
shall be entitled to have a certificate signed by, or in the name of, the
corporation by the Chairman or Vice-Chairman of the Board of Directors, if
any, or by the President or a Vice-President and by the Treasurer or an
Assistant Treasurer or the Secretary or an Assistant Secretary of the
corporation certifying the number of shares owned by him in the corporation.
If such certificate is countersigned by a transfer agent other than the
corporation or its employee or by a registrar other than the corporation or
its employee, any other signature on the certificate may be a facsimile. In
case any officer, transfer agent, or registrar who has signed or whose
facsimile signature has been placed upon a certificate shall have ceased to be
such officer, transfer agent, or registrar before such certificate is issued,
it may be issued by the corporation with the same effect as if he were such
officer, transfer agent, or registrar at the date of issue.
 
  Whenever the corporation shall be authorized to issue more than one class of
stock or more than one series of any class of stock, and whenever the
corporation shall issue any shares of its stock as partly paid stock, the
certificates representing shares of any such class or series or of any such
partly paid stock shall set forth thereon the statements prescribed by the
General Corporation Law. Any restrictions on the transfer or registration of
transfer of any shares of stock of any class or series shall be noted
conspicuously on the certificate representing such shares.
 
  The corporation may issue a new certificate of stock in place of any
certificate theretofore issued by it, alleged to have been lost, stolen, or
destroyed, and the Board of Directors may require the owner of any lost,
stolen, or destroyed certificate, or his legal representative, to give the
corporation a bond sufficient to indemnify the corporation against any claim
that may be made against it on account of the alleged

 
loss, theft, or destruction of any such certificate or the issuance of any
such new certificate.
 
  2. FRACTIONAL SHARE INTERESTS. The corporation may, but shall not be
required to, issue fractions of a share. In lieu thereof it shall either pay
in cash the fair value of fractions of a share, as determined by the Board of
Directors, to those entitled thereto or issue scrip or fractional warrants in
registered or bearer from over the manual or facsimile signature of an officer
of the corporation or of its agent, exchangeable as therein provided for full
shares, but such scrip or fractional warrants shall not entitle the holder to
any rights of a shareholder except as therein provided. Such scrip or
fractional warrants may be issued subject to the condition that the same shall
become void if not exchanged for certificates representing full shares of
stock before a specified date, or subject to the condition that the shares of
stock for which such scrip or fractional warrants are exchangeable may be sold
by the corporation and the proceeds thereof distributed to the holders of such
scrip or fractional warrants, or subject to any other conditions which the
Board of Directors may determine.
 
  3. STOCK TRANSFERS. Upon compliance with provisions restricting the transfer
or registration of transfer of shares of stock, if any, transfers or
registration of transfers of shares of stock of the corporation shall be made
only on the stock ledger of the corporation by the registered holder thereof,
or by his attorney thereunto authorized by power of attorney duly executed and
filed with the Secretary of the corporation or with a transfer agent or a
registrar, if any, and on surrender of the certificate or certificates for
such shares of stock properly endorsed and the payment of all taxes due
thereon.
 
  4. RECORD DATE FOR STOCKHOLDERS. For the purpose of determining the
stockholders entitled to notice of or to vote at any meeting of stockholders
or any adjournment thereof, or to express consent to or dissent from any
corporate action in writing without a meeting, or for the purpose of
determining stockholders entitled to receive payment of any dividend or other
distribution or the allotment of any rights, or entitled to exercise any
rights in respect of any change, conversion, or exchange of stock, or for the
purpose of any other lawful action, the directors may fix, in advance, a date
as the record date for any such determination of stockholders. Such date shall
not be more than sixty days not less than ten days before the date of such
meeting, nor more than sixty days prior to any other action. If no record date
is fixed, the record date for the determination of stockholders entitled to
notice of or to vote at a meeting of stockholders shall be at the close of
business on the day next preceding the day on which
 
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notice is given, or, of notice is waived, at the close of business on the day
next preceding the day on which the meeting is held; the record date for
determining stockholders for any other purpose shall be at the close of
business on the day on which the Board of Directors adopts the resolution
relating thereto. When a determination of stockholders of record entitled to
notice of or to vote at any meeting of stockholders has been made as provided
in this paragraph, such determination shall apply to any adjournment thereof;
provided, however, that the Board of Directors may fix a new record date for
the adjourned meeting.
 
  5. MEANING OF CERTAIN TERMS. As used herein in respect of the right to notice
of a meeting of stockholders or a waiver thereof or to participate or vote
thereat or to consent or dissent in writing in lieu of a meeting, as the case
may be, the term "share" or "shares" or "share of stock" or "shares of stock"
or "stockholder" or "stockholders" refers to an outstanding share or shares of
stock and to a holder or holders of record of outstanding shares of stock when
the corporation is authorized to issue only one class of shares of stock, and
said reference is also intended to include any outstanding share or shares of
stock and any holder or holders of record of outstanding shares of stock of any
class upon which or upon whom the certificate of incorporation confers such
rights where there are two or more classes or series of shares of stock or upon
which or upon whom the General Corporation Law confers such rights
notwithstanding that the certificate of incorporation may provide for more than
one class or series of shares of stock, one or more of which are limited or
denied such rights thereunder; provided, however, that no such right shall vest
in the event of an increase or a decrease in the authorized number of shares of
stock of any class or series which is otherwise denied voting rights under the
provisions of the certificate of incorporation.
 
6. STOCKHOLDER MEETINGS.
 
  --TIME. The annual meeting shall be held on the date and at the time fixed,
from time to time, by the directors, provided, that the first annual meeting
shall be held on a date within thirteen months after the organization of the
corporation, and each successive annual meeting shall be held on a date within
thirteen months after the date of the preceding annual meeting. A special
meeting shall be held on the date and at the time fixed by the directors.
 
  --PLACE. Annual meetings and special meetings shall be held at such place,
within or without the State of Delaware, as the directors may, from time to
time, fix. Whenever the directors shall fail to fix such place, the meeting
shall be held at the registered office of the corporation in the State of
Delaware.
 
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  --CALL. Annual meetings and special meetings may be called by the directors
or by any officer instructed by the directors to call the meeting.
 
  --NOTICE OF WAIVER OF NOTICE. Written notice of all meetings shall be given,
stating the place, date, and hour of the meeting and stating the place within
the city or other municipality or community at which the list of stockholders
of the corporation may be examined. The notice of an annual meeting shall
state that the meeting is called for the election of directors and for the
transaction of other business which may properly come before the meeting, and
shall, (if any other action which could be taken at a special meeting is to be
taken at such annual meeting) state the purpose or purposes. The notice of a
special meeting shall in all instances state the purpose or purposes for which
the meeting is called. If any action is proposed to be taken which would, if
taken, entitle stockholders to receive payment for their shares of stock, the
notice shall include a statement of that purpose and to that effect. Except as
otherwise provided by the General Corporation Law, a copy of the notice of any
meeting shall be given, personally or by mail, no less than ten days nor more
than fifty days before the date of the meeting, unless the lapse of the
prescribed period of time shall have been waived, and directed to each
stockholder at his record address or at such other address which he may have
furnished by request in writing to Secretary of the corporation. Notice by
mail shall be deemed to be given when deposited, with postage thereon prepaid,
in the United States mail. If a meeting is adjourned to another time, not more
than thirty days hence, and/or to another place, and if an announcement of the
adjourned time and/or place is made at the meeting, it shall not be necessary
to give notice of the adjourned meeting unless the directors, after
adjournment, fix a new record date for the adjourned meeting. Notice need not
be given to any stockholder who submits a written waiver of notice by him
before or after the time stated therein. Attendance of a person at a meeting
of stockholders shall constitute a waiver of notice of such meeting, except
when the stockholder attends a meeting for the express purpose of objecting,
at the beginning of the meeting, to the transaction of any business because
the meeting is not lawfully called or convened. Neither the business to be
transacted at, nor the purpose of, any regular or special meeting of the
stockholders need to be specified in any written waiver of notice.
 
  --STOCKHOLDER LIST. The officer who has charge of the stock ledger of the
corporation shall prepare and make, at least ten days before every meeting of
stockholders, a complete list
 
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of stockholders, arranged in alphabetical order, and showing the address of
each stockholder and the number of shares registered in the name of each
stockholder. Such list shall be open to the examination of any stockholder, for
any purpose germane to the meeting, during ordinary business hours, for a
period of at least ten days prior to the meeting, either at a place within the
city or other municipality or community where the meeting is to be held, which
place shall be specified in the notice of the meeting, or if not so specified,
at the place where the meeting is to be held. The list shall also be produced
and kept at the time and place where the meeting is to be held. The list shall
also be produced and kept at the time and place of the meeting during the whole
time thereof, and may be inspected by any stockholder who is present. The stock
ledger shall be the only evidence as to who are the stockholders entitled to
examine the stock ledger, the list required by this section or the books of the
corporation, or to vote at any meeting of stockholders.
 
  --CONDUCT OF MEETING. Meetings of the stockholders shall be presided over by
one of the following officers in the order of seniority and if present and
acting--the Chairman of the Board, if any, the Vice-Chairman of the Board, if
any, the President, a Vice-President, or, if none of the foregoing is in office
and present and acting, by a chairman to be chosen by the stockholders. The
Secretary of the corporation, or in his absence, an Assistant Secretary, shall
act as secretary of every meeting, but if neither the Secretary nor an
Assistant Secretary is present the Chairman of the meeting shall appoint a
secretary of the meeting.
 
  --PROXY REPRESENTATION. Every stockholder may authorize another person or
persons to act for him by proxy in all matters in which a stockholder is
entitled to participate, whether by waiver notice of any meeting, voting or
participating at a meeting, or expressing consent or dissent without a meeting.
Every proxy must be signed by the stockholder or by his attorney-in-fact. No
proxy shall be voted or acted upon after three years from its date unless such
proxy provides for a longer period. A duly executed proxy shall be irrevocable
if it states that it is irrevocable and, if, and only as long as, it is coupled
with an interest sufficient in law to support an irrevocable power. A proxy may
be made irrevocable regardless of whether the interest with which it is coupled
is an interest in the stock itself or an interest in the corporation generally.
 
  --INSPECTORS AND JUDGES. The directors, in advance of any meeting, may, but
need not, appoint one or more inspectors of election or judges of the vote, as
the case may be,
 
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to act at the meeting or any adjournment thereof. If an inspector or inspectors
or judge or judges are not appointed, the person presiding at the meeting may,
but need not, appoint one or more inspectors or judges. In case any person who
may be appointed as an inspector or judge fails to appear or act, the vacancy
may be filled by appointment made by the directors in advance of the meeting or
at the meeting by the person presiding thereat. Each inspector or judge, if
any, before entering upon the discharge of his duties, shall take and sign an
oath faithfully to execute the duties of inspector or judge at such meeting
with strict impartiality and according to the best of his ability. The
inspectors or judges, if any, shall determine the number of shares of stock
outstanding and the voting power of each, the shares of stock represented at
the meeting, the existence of a quorum, the validity and effect of proxies, and
shall receive votes, ballots or consents, hear and determine all challenges and
questions arising in connection with the right to vote, count and tabulate all
votes, ballots or consents, determine the result, and do such acts as are
proper to conduct the election or vote with fairness to all stockholders. On
request of the person presiding at the meeting, the inspector or inspectors or
judge or judges, if any, shall make a report in writing of any challenge,
question or matter determined by him or them and execute a certificate of any
fact found by him or them.
 
  --QUORUM. The holders of a majority of the outstanding shares of stock shall
constitute a quorum at a meeting of stockholders for the transaction of any
business. The stockholders present may adjourn the meeting despite the absence
of a quorum.
 
  --VOTING. Each share of stock shall entitle the holder thereof to one vote.
In the election of directors, a plurality of the votes cast shall elect. Any
other action shall be authorized by a majority of the votes cast except where
the General Corporation Law prescribes a different percentage of votes and/or a
different exercise of voting power. In the election of directors, voting need
not be by ballot. Voting by ballot shall not be required for any other
corporate action except as otherwise provided by the General Corporation Law.
 
  --STOCKHOLDER ACTION WITHOUT MEETINGS. Whenever the vote of stockholders at a
meeting thereof is required or permitted to be taken for or in connection with
any corporate action, the meeting and vote of stockholders may be dispensed
with if all of the stockholders who would have been entitled to vote upon the
action if such meeting were held shall consent in writing to such corporate
action being taken; or if less than all of said stockholders, but not less than
those having at least the minimum voting power required to take corporate
action under the provisions of the General Corporation Law, shall consent in
writing
 
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to such corporate action; provided that prompt notice be given to all
stockholders of the taking of such action without a meeting and by less than
unanimous written consent.
 
                                  ARTICLE II
 
                                   DIRECTORS
 
  1. FUNCTIONS AND DEFINITIONS. The business of the corporation shall be
managed by the Board of Directors of the corporation. The use of the phrase
"whole board" herein refers to the total number of directors which the
corporation would have if there were no vacancies.
 
  2. QUALIFICATIONS AND NUMBER. A director need not be a stockholder, a
citizen of the United States, or a resident or the State of Delaware. The
initial Board of Directors shall consist of two persons. Thereafter the number
of directors constituting the whole board shall be at least three, except
that, where all the shares of stock of the corporation are owned beneficially
and of record by less than three stockholders, the number of directors may be
less than three but not less than the number of such stockholders. Subject to
the foregoing limitation and except for the first Board of Directors, such
number may be fixed from time to time by action of the stockholders or of the
directors, or, if the number is not fixed, the number shall be two. The number
of directors may be increased or decreased by action of the stockholders or of
the directors.
 
  3. ELECTION AND TERM. The first Board of Directors, unless the members
thereof shall have been named in the certificate of incorporation, shall be
elected by the incorporator or incorporators and shall hold office until the
first annual meeting of stockholders and until their successors have been
elected and qualified or until their earlier resignation or removal. Any
director may resign at any time upon written notice to the corporation.
Thereafter, directors who are elected at an annual meeting of stockholders,
and directors who are elected in the interim to fill vacancies and newly
created directorships, shall hold office until the next annual meeting of
stockholders and until their successors have been elected and qualified or
until their earlier resignation or removal. In the interim between annual
meetings of stockholders or of special meetings of stockholders called for the
election of directors and/or for the removal of one or more directors and for
the filling of any vacancy in that connection, newly created directorships and
any vacancies in the Board of Directors, including vacancies resulting from
the removal of directors for cause or without cause, may be filled by the vote
of a majority of the remaining directors then in office, although less than a
quorum, or by the sole remaining director.
 
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  4. MEETINGS.
 
  --TIME. Meetings shall be held at such time as the Board shall fix, except
that the first meeting of a newly elected Board shall be held as soon after
its election as the directors may conveniently assemble.
 
  --PLACE. Meetings shall be held at such place within or without the State of
Delaware as shall be fixed by the Board.
 
  --CALL. No call shall be required for regular meetings for which the time
and place have been fixed. Special meetings may be called by or at the
direction of the Chairman of the Board, if any, the Vice-Chairman of the
Board, if any, of the President, or of a majority of the directors in office.
 
  --NOTICE OR ACTUAL OR CONSTRUCTIVE WAIVER. No notice shall be required for
regular meetings for which the time and place have been fixed. Written, oral,
or any other mode of notice of the time and place shall be given for special
meetings in sufficient time for the convenient assembly of the directors
thereat. The notice of any meeting need not specify the purpose of the
meeting. Any requirement of furnishing a notice shall be waived by any
director who signs a written waiver of such notice before or after the time
stated therein.
 
  --QUORUM AND ACTION. A majority of the whole Board shall constitute a quorum
except when a vacancy or vacancies prevents such majority, whereupon a
majority of the directors in office shall constitute a quorum, provided, that
such majority shall constitute at least one-third of the whole Board. A
majority of the directors present, whether or not a quorum is present, may
adjourn a meeting to another time and place. Except as herein otherwise
provided, and except as otherwise provided by the General Corporation Law, the
act of the Board shall be the act by vote of a majority of the directors
present at a meeting, a quorum being present. The quorum and voting provisions
herein stated shall not be construed as conflicting with any provisions of the
General Corporation Law and these By-Laws which govern a meeting of directors
held to fill vacancies and newly created directorships in the Board.
 
  --CHAIRMAN OF THE MEETING. The Chairman of the Board if any and if present
and acting, shall preside at all meetings. Otherwise, the Vice-Chairman of the
Board, if any and if present and acting, or the President, if present and
acting, or any other director chosen by the Board, shall preside.
 
  5. REMOVAL OF DIRECTORS. Any or all of the directors may be removed for
cause or without cause by the stockholders. One or more of the directors may
be removed for cause by the Board of Directors.
 
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  6. COMMITTEES. The Board of Directors may, by resolution passed by a
majority of the whole Board, designate one or more committees, each committee
to consist of two or more of the directors of the corporation. The Board may
designate one or more directors as alternate members of any committee, who may
replace any absent or disqualified member at any meeting of the committee. Any
such committee, to the extent provided in the resolution of the Board, shall
have and may exercise the powers of the Board of Directors in the management
of the business and affairs of the corporation, and may authorize the seal of
the corporation to be affixed to all papers which may require it. In the
absence or disqualification of any member of any such committee or committees,
the member or members thereof present at any meeting and not disqualified from
voting, whether or not he or they constitute a quorum, may unanimously appoint
another member of the Board of Directors to act at the meeting in the place of
any such absent or disqualified member.
 
  7. ACTION IN WRITING. Any action required or permitted to be taken at any
meeting of the Board of Directors or any committee thereof may be taken
without a meeting if all members of the Board or committee, as the case may
be, consent thereto in writing, and the writing or writings are filed with the
minutes of proceedings of the Board or committee.
 
                                  ARTICLE III
 
                                   OFFICERS
 
  The directors shall elect a President, a Secretary, and a Treasurer, and may
elect a Chairman of the Board of Directors, a Vice-Chairman thereof, and one
or more Vice-Presidents, Assistant Secretaries, and Assistant Treasurers, and
may elect or appoint such other officers and agents as are desired. The
President may but need not be a director. Any number of offices may be held by
the same person.
 
  Unless otherwise provided in the resolution of election or appointment, each
officer shall hold office until the meeting of the Board of Directors
following the next annual meeting of stockholders and until his successor has
been elected and qualified. Any officer may resign at any time upon written
notice.
 
  Officers shall have the powers and duties defined in the resolutions
appointing them; provided, that the Secretary shall record all proceedings of
the meetings or of the written actions of the stockholders and of the
directors, and any committee thereof, in a book to be kept for that purpose.
 
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  The Board of Directors may remove any officer for cause or without cause.
 
                                  ARTICLE IV
 
                                CORPORATE SEAL
 
  The corporate seal shall be in such form as the Board of Directors shall
prescribe.
 
                                   ARTICLE V
 
                                  FISCAL YEAR
 
  The fiscal year of the corporation shall be fixed, and shall be subject to
change, by the Board of Directors.
 
                                  ARTICLE VI
 
                                  AMENDMENTS
 
  The by-laws of the corporation may be made, and shall be subject to
alteration and repeal, by the stockholders of the corporation, at any annual
or special meeting, and by the board of directors at any regular or special
meeting, provided, however, that by-laws made or altered by the Board of
Directors may be altered or repealed by the stockholders at any annual or
special meeting.
 
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