ALARCON, Circuit Judge:
Appellants Winn-Proof Corporation, William Werner, and Wer-Nel Enterprises, Inc. appeal from a judgment of the district court finding claims 3-5 of United States Letters Patents No. 3,646,696 ["the '696 patent"] valid and infringed. Appellee Robert Sarkisian cross-appeals from the court's judgment finding United States Letter Patent No. 3,662,482 ["the '482 patent"] invalid for double patenting. For the reasons stated below, we affirm the judgment...
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