EVANS, Circuit Judge.
Plaintiff brought suit on two patents, one to Carbon P. Dubbs, No. 1,392,629, issued October 4, 1921, and the other, No. 1,537,593, issued to Gustav Egloff, May 12, 1925.
Defendant challenged the validity of both patents and denied infringement of either patent. It also vigorously contends that plaintiff's conduct necessitated a denial of all relief by a court of equity because of Dubbs' unethical conduct. It invokes the plaintiff's unclean...
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