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  5. 641 F.2d 1274 (1981)
 

NDM CORP. v. HAYES PRODUCTS, INC.

No. 77-3900.

641 F.2d 1274 (1981)

NDM CORPORATION, Appellant, v. HAYES PRODUCTS, INC., and Joseph H. Johnson, Appellees.

United States Court of Appeals, Ninth Circuit.

Decided March 16, 1981.

Rehearing and Rehearing Denied June 5, 1981.

Attorney(s) appearing for the Case

James R. Uhlir, Graybeal, Barnard & Uhlir, Seattle, Wash., argued for appellant; John O. Graybeal, Seattle, Wash., on brief.

Kenneth W. Vernon, Seattle, Wash., argued for appellees; Richard W. Seed, Seattle, Wash., on brief.

Before SKELTON, GOODWIN and FERGUSON, Circuit Judges.

Rehearing and Rehearing En Banc Denied June 5, 1981.

GOODWIN, Circuit Judge.

NDM Corporation appeals from a judgment in a patent infringement action that various claims of medical electrode patents which had been assigned to NDM were invalid for obviousness. We affirm.

NDM began,1 in 1969, to develop medical electrodes for use in the electrocardiographic monitoring of heart patients. Initially, NDM attempted to manufacture...

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