WOOLLEY, Circuit Judge.
The plaintiff charged infringement of two patents granted to himself. On issues of validity and infringement the District Court held claims of both patents invalid for want of invention and dismissed the bill. The plaintiff appealed.
Letters Patent No. 1,509,211, Claims 3, 4 and 5.
The invention of this patent to Kausal, which we shall call the first patent, relates generally to electric lamps, and particularly to lamps of...
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