JAMESON, District Judge:
Santa Fe-Pomeroy, Inc., assignee and owner of United States Patent No. 3,412,562, the Doughty Patent, instituted this action against the defendants for patent infringement. The defendants counterclaimed, alleging invalidity of the patent, patent misuse, and violation of the antitrust laws in the licensing of the patent. The district court held that the patent was invalid for obviousness under 35 U.S.C. § 103,
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