STONE, Circuit Judge.
This is a bill for infringement of letters patent No. 1,353,197, dated September 21, 1920, issued to John F. Werder for a compound used in grinding or smoothing metal surfaces. From a decree dismissing the bill on the merits, plaintiff brings this appeal.
The answer in this case is a general denial and that the idea for this invention was secured from a grinding compound known as "Volcano Abrasive" made and marketed by David R. Hawes...
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