ROCHE, District Judge.
Plaintiff seeks an injunction, accounting and costs for the alleged infringement of two patents which it holds as assignee of the inventor, Thompson. Defendants claim invalidity and non-infringement. Both patents relate to combined pressure cookers and pressure coolers used in the food processing industry.
The first patent in suit, Thompson No. 1,694,996, was applied for on January 10, 1921, but because it was placed in interference...
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