CAMPBELL, District Justice.
This is an action brought by the plaintiff for the alleged infringement of Patent No. 2,179,161 issued to Edward Rambusch and Victor G. Anderson for Illuminating Device, granted November 7th, 1939, on an application filed August 18th, 1938.
The defendant has interposed the defenses of invalidity and non-infringement, and file wrapper estoppel.
Plaintiff is the owner of the patent in suit, and the required notice was given...
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