EVAN A. EVANS, Circuit Judge.
This appeal is from a decree dismissing appellant's patent infringement suit, brought to restrain the infringement of two patents to Gustaff Dalen. The first one, No. 904,183, issued November 17, 1908, covers a filling mass for receivers for storing explosive gases. The other, No. 1,140,124, issued May 18, 1925, covers storing mass for acetylene gas.
The invention relates to the ceramic art, which, of course, was old when Dalen...
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