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TECHNITROL, INC. v. CONTROL DATA CORP.

No. 75-1857.

550 F.2d 992 (1977)

TECHNITROL, INC., Appellant, v. CONTROL DATA CORPORATION, Appellee.

United States Court of Appeals, Fourth Circuit.

Decided March 8, 1977.

Attorney(s) appearing for the Case

S. C. Yuter, New York City (Yuter & Rosen, New York City, on brief), for appellant.

Allen Kirkpatrick, Washington, D. C. (Kevin E. Joyce, Larry S. Nixon, Cushman, Darby & Cushman, Washington, D. C., and Joseph A. Genovese, Rockville, Md., Control Data Corp., on brief), for appellee.

Before WINTER, RUSSELL, and WIDENER, Circuit Judges.

WIDENER, Circuit Judge:

This patent case concerns an automatic reset feature, a device to prevent information loss in a magnetic data storage system. Technitrol, Inc., the patent owner, brought an infringement suit for an injunction and damages against Control Data Corp., a manufacturer, seller, and user of such systems. Control Data filed a counterclaim asking the court to declare Technitrol's patent invalid and moved for summary judgment for failing to comply with...

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