ALSCHULER, Circuit Judge.
The appeal is from a decree adjudging validity and infringement of claim 2 of United States patent No. 1,558,194, October 20, 1925, to Luebben, for an improved sharpening machine, and adjudging also appellant's unfair trade competition in its simulation of appellees' commercial machine.
Claim 2 is:
"2. An implement sharpening assembly comprising a pair of like rotary abrading disks, a face of each disk being inclined in opposite...
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