Exhibit 10.26
 
                     ADVANCED TECHNOLOGY LABORATORIES, INC.

                           SUPPLEMENTAL BENEFIT PLAN









                              AMENDED AND RESTATED

                           EFFECTIVE JANUARY 1, 1994



Prepared for review by legal counsel.

 
                  TABLE OF CONTENTS


                                                  Page
                                                  ----
                                         
PREAMBLE.........................................    1
 
ARTICLE 1 -- PURPOSE.............................    2
 
     1.1      Purpose............................    2
 
ARTICLE 2 -- DEFINITIONS.........................    3
 
     2.1      "Code"                                 3
     2.2      "Company"                              3
     2.3      "Compensation Committee"...........    3
     2.4      "Disability".......................    3
     2.5      "Earnings".........................    3
     2.6      "Participant"......................    3
     2.7      "Plan".............................    3
     2.8      "Retirement".......................    3
     2.9      "Retirement Plan"..................    3
     2.10     "Subsidiaries".....................    3
     2.11     "Surviving Spouse".................    3
     2.12     "Years of Service".................    3
 
ARTICLE 3 -- ADMINISTRATION......................    4
 
     3.1      Compensation Committee.............    4
     3.2      Benefits Committee.................    4
     3.3      Expenses...........................    4
 
ARTICLE 4 -- PARTICIPATION.......................    5
 
     4.1      Retirement Plan Participants.......    5
     4.2      Retirement Plan Benefit............    5
     4.3      Other Participants.................    5
     4.4      Limitation on Participation........    5
 
ARTICLE 5 -- BENEFITS............................    6
 
     5.1      Supplemental Pension Benefits......    6
     5.2      Other Supplemental Pension 
               Benefits..........................    6
     5.3      Death Benefits.....................    6
 
ARTICLE 6 -- PAYMENT OF BENEFITS.................    7
 
 
     6.1      Payment of Benefits................    7
 
 



 
TABLE OF CONTENTS
(continued)



                                                  Page
                                                  ----
                                         
ARTICLE 7 -- GENERAL PROVISIONS..................    8
 
     7.1      Unfunded Obligation................    8
     7.2      Nonassignment......................    8
     7.3      No Right to Continued Employment...    8
     7.4      Withholding Taxes..................    8
     7.5      Termination and Amendment..........    8
     7.6      ERISA Exemption....................    9
     7.7      Applicable Law.....................    9
 
SIGNATURE PAGE...................................    9
 
APPENDIX A.......................................   10
 
APPENDIX B.......................................   11




 
                                    PREAMBLE


   THIS ADVANCED TECHNOLOGY LABORATORIES, INC. SUPPLEMENTAL BENEFIT PLAN (the
"Plan") formerly known as the Westmark International Incorporated Supplemental
Benefit Plan and now known as the Advanced Technology Laboratories, Inc.
Supplemental Benefits Plan is amended and restated effective January 1, 1994, by
Advanced Technology Laboratories, Inc. (the "Company"), a Delaware corporation.

   WHEREAS, the Plan was adopted by Westmark International Incorporated
effective January 1, 1989; and

   WHEREAS, effective June 26, 1992, the corporate name of Westmark
International Incorporated was changed to Advanced Technology Laboratories,
Inc., and the Plan was amended and restated as the Advanced Technology
Laboratories, Inc. Supplemental Benefit Plan; and

   WHEREAS, the Company desires to amend and restate the Plan to effect certain
changes;

   NOW THEREFORE, the Company does hereby amend and restate the June 26, 1992
Plan as set forth in the following pages, effective January 1, 1994, except as
otherwise specified herein.

                                      1

 
                                   ARTICLE 1

                                    PURPOSE


1.1  Purpose.
     ------- 

     The purpose of this Advanced Technology Laboratories, Inc. Supplemental
     Benefit Plan (the "Plan") is to retain exceptional executives by
     providing retirement benefits to key executives.


                                      2

 
                                   ARTICLE 2

                                  DEFINITIONS


For purposes of this Plan, the following terms shall have the meanings
indicated:

2.1  "Code" means the Internal Revenue Code of 1986 as amended.
     ------                                                    

2.2  "Company" means Advanced Technology Laboratories, Inc., a Delaware
     ---------                                                         
     Corporation.

2.3  "Compensation Committee" means the committee defined in Section 3.1 of this
     ------------------------                                                   
     Plan.

2.4  "Disability" has the same meaning as provided in the Retirement Plan.
     ------------                                                         

2.5  "Earnings" has the same meaning as provided in the Retirement Plan.
     ----------                                                         

2.6  "Participant" means each individual who participates in the Plan in
     -------------                                                      
     accordance with Article IV.

2.7  "Plan" means the Advanced Technology Laboratories, Inc. Supplemental
     ------                                                              
     Benefit Plan as set forth in this document and in any amendments made from
     time to time.

2.8  "Retirement", for a Participant who is entitled to a benefit under the
     ------------                                                          
     Retirement Plan, means his or her "Retirement Date" or "Vested Termination
     Date" as defined in the Retirement Plan.  In the case of a Participant who
     is not entitled to a benefit under the Retirement Plan, "Retirement" means
     the later of the date the Participant attains age 55 or terminates
     employment with the Company and its Subsidiaries.

2.9  "Retirement Plan" means the Advanced Technology Laboratories, Inc.
     -----------------                                                 
     Retirement Plan and Trust.

2.10 "Subsidiaries" means (i) wholly owned subsidiaries of the Company and
     --------------                                                       
     (ii) those subsidiaries of which 50% or more is owned by the Company and
     which are specifically designated by the Compensation Committee as
     participating employers in this Plan.

2.11 "Surviving Spouse" means the spouse of a Participant, provided that the
     ------------------                                                     
     Participant was married to the spouse throughout the one-year period
     ending on the date of the Participant's death.

2.12 "Years of Service" has the same meaning as provided in the Retirement
     ------------------                                                   
     Plan.

                                      3

 
                                   ARTICLE 3

                                 ADMINISTRATION

 
3.1  Compensation Committee
     ----------------------

     The Compensation Committee, appointed by the Company's Board of Directors,
     shall, except as otherwise authorized by the Board of Directors, consist
     of directors who are not employed by the Company or its Subsidiaries.  The
     Compensation Committee shall have the exclusive authority to:

     (a) designate individuals to participate in the Plan pursuant to Section
         4.3, in addition to those individuals who automatically become
         Participants pursuant to Section 4.1;

     (b) designate non-wholly owned Subsidiaries which shall be participating
         employers in the Plan, which shall be listed in Appendix B to this
         Plan;

     (c) engage such legal, accounting, actuarial and other professional
         services as it may deem proper; and

     (d) approve documents and amendments to the Plan that may be required from
         time to time to keep the Plan in compliance with relevant law or to
         facilitate administration of the Plan.

     Decisions by the Compensation Committee shall be final and binding upon
     all parties.  The Chairman of the Committee is authorized to execute any
     documents and amendments to the Plan on behalf of the Company.

3.2  Benefits Committee
     ------------------

     The Benefits Committee appointed by the Compensation Committee to
     administer the Retirement Plan shall have the authority and responsibility
     for the proper operation and administration of the Plan according to its
     terms.

3.3  Expenses
     --------

     All benefits payable under the Plan and all expenses properly incurred in
     the administration of the Plan, including all expenses properly incurred
     by the Compensation Committee in exercising its duties under the Plan,
     shall be borne by the Company.

                                      4

 
                                   ARTICLE 4

                                 PARTICIPATION


4.1  Retirement Plan Participants
     ----------------------------

     Each participant in the Retirement Plan whose benefits thereunder are
     limited by (a) the dollar limitation on compensation that may be taken
     into account under the plan of Section 401(a)(17) of the Code and/or (b)
     the benefits limitations of Section 415 of the Code (including, without
     limitation, the maximum benefit payable under Section 415(b)(1), the
     actuarial reduction for early retirement of Section 415(b)(2)(C), the
     reduction for limited service or participation of Section 415(b)(5), and
     the combined limits of Section 415(e)) shall become a Participant in this
     Plan.  Participation shall begin as of the later of the effective date of
     the Plan or the last day of the first Plan Year in which the individual's
     accrued benefit under the Retirement Plan is limited by Sections
     401(a)(17) or 415 of the Code.

4.2  Retirement Plan Benefit
     -----------------------

     For purposes of determining participation in and benefits under this Plan,
     the benefit to which an individual is entitled under the Retirement Plan
     shall be calculated by including as "Earnings" in the year in which earned
     any amounts deferred under a nonqualified deferred compensation plan or
     arrangement, which are not otherwise included in Earnings.

4.3  Other Participants
     ------------------

     The Compensation Committee may determine and designate other select
     management or highly compensated employees of the Company and its
     Subsidiaries to receive additional supplemental pension benefits under
     this Plan, as described in Section 5.2, whose names shall be added to an
     Appendix A to this Plan.  Such individuals shall become Participants as of
     the date of designation by the Compensation Committee.

4.4  Limitation on Participation
     ---------------------------

     Employees designated for benefits under Section 4.3 shall be members of a
     select group of top management or highly compensated employees.

                                         5

 
                                   ARTICLE 5

                                    BENEFITS


5.1  Supplemental Pension Benefits
     -----------------------------

     Upon the Retirement or Disability of a Participant, the Company shall pay
     to such Participant supplemental pension benefits which when combined with
     the amounts he or she is entitled to receive under the Retirement Plan (if
     any) shall equal the retirement pension benefits which would have been
     payable to the Participant had the Retirement Plan's formula been applied
     without regard to the limitations of Sections 401(a)(17) and 415 of the
     Code.

     For years before calendar year 1994, the supplemental pension benefits for
     a Participant who received salesman commissions or service
     commissions/incentives during the calendar year shall be determined, as to
     that year, by disregarding any such commissions and incentives which
     exceed the dollar limitation of Section 401(a)(17) of the Code.

     For all years subsequent to calendar year 1993, the supplemental pension
     benefits for a Participant who is not the Chief Executive Officer or one
     of the other four most highly compensated executive officers of the
     Company who were serving as executive officers at the end of the last
     completed fiscal year, as specified in Item 402 of Regulation S-K of the
     Securities and Exchange Act of 1934 and reported in the Company's proxy
     statement for the applicable year (the "Five Highest Compensated
     Officers") shall be determined, as to such years subsequent to 1993, by
     disregarding any Earnings which are in excess of the average of the
     Earnings of the Five Highest Compensated Officers for such year.

5.2  Other Supplemental Pension Benefits
     -----------------------------------

     The Compensation Committee in its discretion may establish other
     supplemental pension benefits and designate the Participants who will be
     entitled to receive such benefits.  Any such additional supplemental
     pension benefits shall be described in an Appendix to this Plan, and,
     unless otherwise specified in such Appendix, shall be payable as provided
     in Article VI.

5.3  Death Benefits
     --------------

     Upon the death of a Participant prior to Retirement, the Company shall pay
     to the Surviving Spouse (if any) of such Participant a death benefit which
     when combined with the death benefit which he or she is entitled to
     receive under the Retirement Plan shall equal the death benefit that would
     have been payable to the Surviving Spouse had the Retirement Plan's
     benefit provisions been applied as provided in Section 5.1 or 5.2 above,
     as applicable.


                                      6

 
                                   ARTICLE 6

                              PAYMENT OF BENEFITS


6.1  Payment of Benefits
     -------------------

     Upon the Retirement or Disability of a Participant, the Company shall pay
     to such Participant the benefit provided in Section 5 in the form of a
     monthly annuity payable from the commencement date as provided in Section
     6.2 to the first of the month preceding death.  Upon the death of a
     Participant prior to commencement of benefits under this Plan, the Company
     shall pay to the Surviving Spouse of such Participant one half of the
     benefit provided in Section 5 in the form of a monthly annuity payable
     from the commencement date as provided in Section 6.2 to the first of the
     month preceding the death of the Surviving Spouse.

     Notwithstanding the above, the Compensation Committee in its discretion
     may direct payment of the benefit for a Participant or Surviving Spouse in
     the form of a lump sum cash payment if the Compensation Committee
     determines that such payment is in the best interest of the Company.

     The amount of any such lump sum payment shall be determined by calculating
     the benefit according to the terms of the Retirement Plan as a whole life
     annuity, then calculating the present value of such benefit using the
     actuarial assumptions specified in the Retirement Plan for determining
     benefits of equivalent value, without regard to the provision for use of
     Pension Benefit Guarantee Corporation rates for calculating lump sums.

6.2  Commencement of Payment
     -----------------------

     If a Participant in this Plan is also a participant in the Retirement
     Plan, benefits for the Participant or Surviving Spouse under this Plan
     shall commence on the same date that benefits commence under the
     Retirement Plan.  If a Participant in this Plan is not also a participant
     in the Retirement Plan, benefits to the Participant shall commence as of
     the first day of the month coincident with or next following the earlier
     of the date of Retirement or Disability.  Benefits to a Surviving Spouse
     shall commence as of the first of the month following the Participant's
     death if the Participant was age 55 or older, or as of the first of the
     month following the date on which the Participant would have reached age
     55 if the Participant was younger than age 55 at the time of death.


                                      7

 
                                   ARTICLE 7

                               GENERAL PROVISIONS


7.1  Unfunded Obligation
     -------------------

     The supplemental benefits to be paid to Participants or their Surviving
     Spouses pursuant to this Plan are unfunded obligations of the Company, and
     shall, until actual payment, continue to be an obligation against the
     general funds of the Company.  The Company is not required to segregate
     any monies from its general funds, or to create any trusts, or to make any
     special deposits with respect to these obligations.  Nothing contained
     herein shall be deemed to create a trust of any kind or create any
     fiduciary relationship.  To the extent that any person acquires a right to
     receive payments from the Company under this Plan, such right shall be no
     greater than the right of any unsecured general creditor of the Company.

7.2  Nonassignment
     -------------

     The right of a Participant or his or her Surviving Spouse to the payment
     of any amounts under the Plan may not be assigned, transferred, pledged or
     encumbered nor shall such right or other interest be subject to
     attachment, garnishment, execution or other legal process.

7.3  No Right to Continued Employment
     --------------------------------

     Nothing in the Plan shall be construed to confer upon any Participant any
     right to continued employment with the Company or a Subsidiary, nor
     interfere in any way with the right of the Company or a Subsidiary to
     terminate the employment of such Participant at any time without assigning
     any reason therefor.

7.4  Withholding Taxes
     -----------------

     Appropriate payroll taxes shall be withheld from cash payments made to
     Participants pursuant to this Plan.

7.5  Termination and Amendment
     -------------------------

     The Board of Directors of the Company reserves the power at any time to
     terminate this Plan and delegates to the Compensation Committee the power
     to otherwise amend any portion of the Plan other than this Section 7.5;
     provided, however, that no such action shall adversely affect the right of
     any Participant (or Surviving Spouse) to a benefit to which he or she has
     become entitled under the Plan.  Notice of termination or material
     amendment of the Plan shall be given in writing to each Participant.

     If the Plan is terminated, Participants and Surviving Spouses who have
     accrued benefits under the Plan as of the date of termination will receive
     payment of such benefits at the times specified in the Plan.


                                      8

 
7.6  ERISA Exemption
     ---------------

     The portion of this Plan providing benefits in excess of the limitations
     of Section 415 of the Code is intended to qualify for exemption from the
     Employee Retirement Income Security Act of 1974 ("ERISA") as an unfunded
     excess benefit plan under Sections 3(36) and 4(b)(5) of ERISA.  The
     portion of this Plan providing benefits in excess of the limitation of
     Section 401(a)(17) of the Code and other supplemental benefits is intended
     to qualify for exemption from Parts II, III, and IV of ERISA as a plan
     maintained primarily for the purpose of providing deferred compensation
     for a select group of management or highly compensated employees under
     Sections 201(2), 301(a)(3) and 401(a)(1) of ERISA.

7.7  Applicable Law
     --------------

     The Plan shall be construed and governed in accordance with the laws of
     the State of Washington.


     Dated:     May 5               , 1994
           -------------------------    ----

                                          Advanced Technology Laboratories, Inc.



                                By: /s/ Harvey N. Gillis
                                   ---------------------------------------------

                                Title:  Chief Financial Officer
                                      ------------------------------------------



                                      9

 
                                   APPENDIX A


Pursuant to Section 4.3 of the Plan, the following select management or highly
compensated Participants shall be entitled to receive additional supplemental
pension benefits under the Plan, as described below:





     Name                Benefit                          Benefit Distribution Date
     ----                -------                          -------------------------
                                                 
1.   Robert T. deGavre   Determined under an employment    September, 1992
                         agreement entered as of
                         January 1, 1987.







Acknowledged and Accepted

By:______________________________

Title:___________________________

Date:____________________________



                                      10

 
                                   APPENDIX B

                                     TO THE

                     ADVANCED TECHNOLOGY LABORATORIES, INC.
                           SUPPLEMENTAL BENEFIT PLAN

Pursuant to Section 3.1(b) of the Plan, the following Subsidiaries shall be
participating employers in the Plan:





          Company                          Beginning            Ending
          -------                          ---------            ------
                                                       
1.     Advanced Technology Laboratories      1/1/89
       Inc. (Washington)



Acknowledged and Accepted

By:______________________________

Title:___________________________

Date:____________________________


                                      11