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COLUMBIA BROADCASTING SYSTEM v. ZENITH RADIO CORP.

No. 75-2157.

537 F.2d 896 (1976)

COLUMBIA BROADCASTING SYSTEM, INC., Plaintiff-Appellee, v. ZENITH RADIO CORPORATION and The Rauland Corporation, Defendants-Appellants.

United States Court of Appeals, Seventh Circuit.

Decided June 30, 1976.

Rehearing and Rehearing Denied August 17, 1976.

Attorney(s) appearing for the Case

Dugald S. McDougall, Francis W. Crotty, Chicago, Ill., for defendants-appellants.

Herbert P. Kenway, Boston, Mass., James R. Sweeney, Chicago, Ill., for plaintiff-appellee.

Before PELL, SPRECHER, Circuit Judges, and JAMESON, Senior District Judge.

Rehearing and Rehearing En Banc Denied August 17, 1976.

SPRECHER, Circuit Judge.

This action seeking damages for infringement of U.S. Letters Patent Nos. 2,690,518 and 3,179,836 concerning the design of color television picture tubes was brought by Columbia Broadcasting System, Inc. against Zenith Radio Corp. and its subsidiary The Rauland Corp. The district court, after a bench trial, held the patents in issue valid and infringed by devices made by the defendants...

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