Exhibit 18 Argonaut Technologies, Inc. 1101 Chess Drive Foster City, California 94404 January 12, 2005 Jewelcor Management, Inc. Mr. Seymour Holtzman 100 North Wilkes Barre Blvd. Wilkes Barre, Pennsylvania 18702 Re: Letter of Agreement Gentlemen: As...Letter of Agreement • January 26th, 2005 • Jewelcor Management Inc • In vitro & in vivo diagnostic substances • Delaware
Exhibit 19 VIA FACSIMILE (650) 655-4300 January 20, 2005 Lissa A. Goldenstein President and Chief Executive Officer Argonaut Industries, Inc. 1101 Chess Drive Foster City, CA 94404 Dear Ms. Goldenstein: In accordance with the terms of the letter...Withdrawal of Request for Special Meeting • January 26th, 2005 • Jewelcor Management Inc • In vitro & in vivo diagnostic substances
