GARDNER, Circuit Judge.
In these cases, appellants Earl J. Vallen and Vallen, Inc., brought suit against appellee Victor H. Volland, charging infringement by Volland of the Vallen patent 2,012,460, granted August 27, 1935. They also charged unfair competition and asked for a declaratory judgment adjudging that their patent does not infringe a prior patent, No. 1,848,086, issued to defendant. Defendant answered denying infringement and alleging the invalidity of the...
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