CLARK, Circuit Judge.
This is an appeal from a judgment of the District Court declaring invalid all six claims and holding not infringed claims 1, 4, and 6 of plaintiff's patent No. 2,132,399 for "Leather Cemented Articles," issued October 11, 1938. The patent contained claims both for the method of manufacture and for the product itself, which was disclosed as a composite material made by uniting a leather to a layer of fabric by means of a cement, the cement being...
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