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DUFF-NORTON COMPANY v. RATCLIFF

No. 19893.

362 F.2d 551 (1966)

DUFF-NORTON COMPANY, a Corporation, Appellant-Cross Appellee, v. Ralph A. RATCLIFF, an Individual, Appellee-Cross Appellant.

United States Court of Appeals Ninth Circuit.

June 16, 1966.

Attorney(s) appearing for the Case

Jack E. Dominik, of Dominik & Stein, Chicago, Ill., Carl Hoppe, of Hoppe, Mitchell, Murtha & Anderson, San Francisco, Cal., for appellant.

Milton W. Schlemmer, San Francisco, Cal., for appellee.

Before MADDEN, Judge of the Court of Claims, and HAMLEY and MERRILL, Circuit Judges.

MERRILL, Circuit Judge.

At issue is the validity of appellant's patent upon a lever-operated chain hoist.1 The District Court entered judgment for appellee, ruling the patent invalid. We affirm.

The court in its findings dealt at length with the prior art. It found that the claims in issue "call for a mere mechanical arrangement of known elements, virtually all of which are shown in combination in prior patents for both hoists...

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