McCORMICK, District Judge.
This is a suit in equity for infringement of patent No. 1,808,756, granted July 9, 1931, to George D. Beauchamp, for improvement in stringed musical instruments.
The defenses urged at the hearing and in the briefs are substantially: (1) Invalidity of the patent; (2) lack of invention and novelty; and (3) no infringement by defendants. There are other defenses pleaded, but they have been either abandoned or no substantial evidence...
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