LAYTON, District Judge.
This is a motion for summary judgment by the defendant in a suit wherein the plaintiff charges infringement of six patents issued to the plaintiff's deceased husband, Professor George W. Pierce. The patents are Numbers 2,133,642 (642), 2,133,643 (643), 2,133,645 (645), 2,133,646 (646), 2,133,648 (648) and 2,133,070 (070).
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