INVENTORY
                              PURCHASE AND SALE AGREEMENT


                                       between


                              Office Supply Line, Inc.,

                                   Michael L. Lowe


                                         and

                                  Imtek Corporation


                             Dated as of November 1, 1997





                        INVENTORY PURCHASE AND SALE AGREEMENT

     THIS INVENTORY PURCHASE AND SALE AGREEMENT ("Agreement") is made and
entered into as of November 1, 1997, by and between Office Supply Line, Inc., a
Virginia Corporation ("Seller"), Imtek Corporation, a Maryland corporation
("Buyer") and Michael L. Lowe.

                                     WITNESSETH:

     WHEREAS, Seller is the owner of and wishes to sell the inventory more
particularly described in Exhibit A, attached hereto and made a part hereof
("Inventory"); and

     WHEREAS, Buyer wishes to buy from Seller the Inventory; and

     WHEREAS, Seller and Buyer wish to enter into an agreement setting forth the
terms and conditions of the purchase and sale of the Inventory.

     NOW THEREFORE, in consideration of the mutual covenants and conditions
hereinafter set forth and other good and valuable consideration, the receipt and
sufficiency of which are hereby expressly acknowledged, the parties hereto agree
as follows:

                                      ARTICLE I

                            PURCHASE AND SALE OF INVENTORY

     1.1   Purchase Price. Seller hereby agrees to sell to Buyer, and Buyer
hereby agrees to buy from Seller all of Seller's right, title and interest in
the Inventory Note for the purchase price of Two Hundred Thirty Seven Thousand
Dollars ($237,000).

     1.2   Closing, The Closing of the purchase and sale of the Inventory shall
take place no latter than November 30, 1997.

     1.3   Payment of Purchase Price. Buyer agrees to pay Seller an amount 
equal to the Purchase Price. Buyer shall remit payment of the Purchase price 
to Seller as follows: (a) $75,000 by certified check, cashier's check or bank 
wire at Closing; (b) assumption of $70,000 in liabilities described in 
Exhibit B attached hereto and made a part hereof ("Assumed Liabilities"); and 
(c) a Promissory Note for $92,000, attached hereto and made a part hereof.

     1.4   Transfer of Title to Inventory. Upon payment in full of the 
Purchase Price, Seller shall execute and deliver to Buyer a Bill of Sale. In 
addition, Seller shall execute and deliver such assignments of security 
agreements, financing statements and similar document as Seller, in its 
reasonable discretion, deems to be necessary or appropriate for the legal 
transfer of Seller's right, title and interest in the Inventory immediately 
upon the receipt of the full amount of Payment Price as described in section 
1.3, above. Should any assignment in addition to those delivered by Seller be 
required by applicable law, Buyer shall prepare and submit such additional



assignments to Seller for execution, and Buyer agrees to execute such additional
assignments.

     1.5   Use of Proceeds from Resale of Inventory. The parties agree hereto 
to permit the resale of Inventory only as follows: (a) Buyer may negotiate 
the sale of all or part of the Inventory with the approval of Michael L. 
Lowe; (b) any proceeds from sale on any of the Inventory must be used to 
reduce pay any unpaid Assumed Liabilities and the Promissory Note until the 
Purchase Price described in section 11.3 above has been paid in full.

                                      ARTICLE II

                 REPRESENTATIONS, WARRANTIES AND COVENANTS OF SELLER

     2.1   Seller's Warranties and Representations. Seller hereby represents 
and warrants to Buyer the statements in Section 2.2, Section 2.3 and Section 
2.4 are true and correct, as of the date of this Agreement, and shall be true 
and correct as of the Closing.

     2.2   Authority to Sell. Seller is duly and legally authorized to enter
into this Agreement, and to sell, transfer, convey and assign the Inventory.

     2.3   Liens and Encumbrances. The Inventory is free and clear of any liens,
judgements or encumbrances.

     2.4   Seller Indemnification. Seller warrants it will hold harmless and
indemnify Buyer from any adverse claims.

                                     ARTICLE III

                               MISCELLANEOUS PROVISIONS

     3.1   Severability. Each part of this Agreement is intended to 
severable. If any term, covenant, condition or provision of this Agreement is 
unlawful, invalid or unenforceable, such legality, invalidity or 
unenforceability shall not effect the remaining provisions of this Agreement, 
which shall remain in full force and effect and shall be binding upon the 
parties.

     3.2   Headings. The headings and the Articles and Sections of this
Agreement are inserted for convenience only and shall not affect the meaning or
interpretation of this Agreement or any provision thereof.

     3.3   Governing Law. The parties agree that this Agreement shall be
construed, and the rights and obligations of the parties under the Agreement
shall be determined in accordance with the laws of the State of Virginia.

     3.4   Entire Agreement. This Agreement, including any Exhibits, 
constitutes the entire agreement between the parties pertaining to the 
subject matter hereof and supersedes any and all



prior agreements, representations and understandings of the parties, written or
oral.

     3.5   Waiver. No waiver by either party of the other party's breach of 
any terms, covenant or condition contained in this Agreement shall be deemed 
to be a waiver of any subsequent breach of the same or any other term, 
covenant or condition of this Agreement.

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed and sealed as of the day and year first written above.


                                        IMTEK CORPORATION


                                        /s/ [Illegible]
                                        ------------------------


                                        OFFICE SUPPLY LINE, INC.


                                        /s/ Michael L. Lowe
                                        ------------------------



                                         MICHAEL L. LOWE


                                         /s/ Michael L. Lowe
                                         -----------------------






                                   PROMISSORY NOTE


PROMISE TO PAY. Imtek Corporation ("Borrower") promises to pay to Office 
Supply Line ("Lender"), or order, in lawful money of the Untied States of 
America, the principal amount of Ninety Two Thousand and 00/100 Dollars 
($92,000.00), together with interest of 10% per anum on the unpaid balance 
until paid in full.

INTEREST PAYMENTS. Borrower will pay Lender monthly payments of $9,626.92
Borrower's first payment is due December 15, 1997, and all subsequent payments
are due on the same day of each month after that.

PRINCIPAL PAYMENT. The entire unpaid principal and any accrued interest shall be
payable UPON DEMAND of the Lender.

PREPAYMENT. Borrower may pay without penalty all of the amount owed at any time.

DEFAULT. Borrower will be in default if any of the following happens: (a) 
Borrower fails to make any payment when due, (b) Borrower breaks any promise 
Borrower has made to Lender, or Borrower fails to perform promptly at the 
time and strictly in the manner provided in this Promissory Note, (c) 
Borrower becomes insolvent, a receiver is appointed for any part of 
Borrower's property. Borrower makes an assignment for the benefit of 
creditors, or any proceeding is commenced either by Borrower or against 
Borrower under any bankruptcy or insolvency laws.

ASSIGNABILITY. This Promissory Note may be legally assigned by Lender or any
holder at any time.

GENERAL PROVISIONS. Lender may delay or forego enforcing any of its rights or 
remedies under this Promissory Note without losing them. Borrower, to the 
extent allowed by law, waive presentment, demand for payment, protest and 
notice of dishonor. This Promissory Note shall be governed, construed and 
interpreted in accordance with the laws of the State of Maryland.

IN WITNESS WHEREOF, the Borrower has executed this Promissory Note intending 
this Promissory Note to constitute an instrument under seal.

WITNESS/ATTEST:                         BORROWER:



/s/ [Illegible]                          /s/ [Illegible]
- -----------------------------------     ---------------------------------



                                    ATTACHMENT B

                                Assumed Liabilities