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TECHNICON INSTRUMENTS CORP. v. COLEMAN INSTRUMENTS CORP.

No. 15822.

385 F.2d 391 (1967)

TECHNICON INSTRUMENTS CORPORATION, Plaintiff-Appellee, v. COLEMAN INSTRUMENTS CORPORATION and American Hospital Supply Corporation, Defendants-Appellants.

United States Court of Appeals Seventh Circuit.

October 10, 1967.

Attorney(s) appearing for the Case

George B. Newitt, Sheldon W. Witcoff, Bair, Freeman & Molinare, Chicago, Ill., for defendants-appellants.

Homer J. Schneider, Gerald Rose, Chicago, Ill., for plaintiff-appellee, Harry Cohen, New York City, of counsel.

Before DUFFY, Senior Circuit Judge, and CASTLE and KILEY, Circuit Judges.

DUFFY, Senior Circuit Judge.

The complaint herein alleges infringement of four United States patents owned by plaintiff. Each defendant counterclaims for a declaratory judgment of invalidity and non-infringement. Only two of the patents are involved in this appeal, viz., Skeggs United States Patent No. 2,797,149 and Skeggs United States Patent No. 2,879,141.

On this appeal, appellants contest only the trial court...

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