PAGE, Circuit Judge.
Appellants, plaintiffs, charged infringement of claims 36, 54 and 55 of Cramer patent 1,431,907 by defendant, owner of Garman patent 1,320,224. The bill was dismissed, and appeal allowed.
What Cramer did, plaintiffs say, was (1) to arrange the fan and motor, so that the cool air entered first the motor and then the fan, instead of the reverse; (2) to prepare a bleed valve in the air inlet, so that, irrespective of conditions in the piano...
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