SPARKS, Circuit Judge.
This action was instituted by Walter A. Tratsch and the Monarch Tool & Manufacturing Company against the Chicago Lock Company for infringement of Tratsch patent, No. 1,908,380, issued May 9, 1933, and Louis Hall patent, No. 1,908,752, issued May 16, 1933. Hall had assigned his entire interest in his patent to the Monarch Company, and Tratsch had assigned one-half interest in his patent to the Monarch Company, and the company had in turn...
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