PAGE, Circuit Judge.
A bill, charging infringement of claims 1 to 6 of letters patent No. 855,160 and claims 1 to 3 of letters patent No. 1,101,783, was dismissed by the District Court. Infringement is admitted. The defense is noninvention.
The stated object of the earlier patent is to provide a train shed, with a roof a short distance above the engine smokestacks, so that the gases and steam will escape directly into the outer air. The substance of the claims...
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