DENMAN, Circuit Judge.
The plaintiff, Gasair Corporation, brought this action charging defendant, Ransome Company, with infringement of its Heller Patent No. 2,023,809 and now appeals from a judgment of the district court holding the patent invalid on grounds of anticipation and lack of invention and dismissing the complaint.
Plaintiff's patent, issued in 1935, covers an automatic distributing system for butane gas. The device of the patent is admittedly a...
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