Exhibit 4.5 December 4, 2001 Richard E. Mitchen 12011 Bricksome Avenue Suite D Baton Rouge, Louisiana 70816 Dear Mr. Mitchen: Petrocon Engineering, Inc., a Texas corporation (the "Company"), has issued to you a Warrant (the "Existing Warrant")...Warrant Agreement • April 1st, 2002 • Industrial Data Systems Corp • Electronic computers
Contract Type FiledApril 1st, 2002 Company Industry
Exhibit 4.4 December 4, 2001 Robert A. Marks 160 Wilbrook Stratford, CT 06614 Dear Mr. Marks: Petrocon Engineering, Inc., a Texas corporation (the "Company"), has issued to you a Warrant (the "Existing Warrant") pursuant to the Warrant Agreement dated...Warrant Agreement • April 1st, 2002 • Industrial Data Systems Corp • Electronic computers
Contract Type FiledApril 1st, 2002 Company Industry