WILBUR, Circuit Judge.
This is an appeal from a final decree of the District Court in a suit brought by appellants for infringement of letters patent No. 1,840,432 issued January 12, 1932, to appellant Bray. The court held that claim 1 of the patent was void; that claims 2 and 3 of the patent were valid but limited in scope and not infringed by the appellees. The alleged invention disclosed by the patent is for an oil well pump.
The record on appeal is voluminous...
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