LINDLEY, Circuit Judge.
Having been accused of infringing defendant's patent to Hansen et al. No. 2,298,373, applied for April 25, 1940, issued October 13, 1942, plaintiff brought suit against defendant praying for a declaratory judgment that no valid claim of the patent had been infringed by plaintiff's manufacture and sale of certain types of synchronous electric clock motors. Defendant filed a counterclaim charging plaintiff with infringement of Claims 4, 9, 10...
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