This is an appeal from an adjudication of infringement of Cross patent No. 1,758,146 covering a "domestic heating system", applied for November 11, 1926, and issued May 13, 1930.
Defendant (appellant) did not rely upon invalidity of the patent because of anticipation or prior publication. The two defenses were (1) that there was no infringement and (2), if the patent claims read upon the accused...
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