MEMORANDUM OF DECISION
NEAHER, District Judge.
This action, which was tried by the court on the facts, involves questions of validity and infringement of United States Patent 3,322,515 (the '515 patent) and United States Patent 3,436,248 (the '248 patent) owned by defendant Metco, Inc. The action was begun by plaintiffs as a declaratory judgment action, requesting a declaration of noninfringement and invalidity of the patents. Defendant counterclaimed, charging...
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