Gandy v. Main Belting Co.

Starting with the usual presumption in favor of the plaintiff’s patent, (269,519,) we do not find anything in the state of the art that would justify us in deciding it to be invalid. Each of the claims should receive a strict construction. Even in this view we think both of them are infringed by the defendant’s device. As respects the first, infringement is scarcely denied; and as respects the second, we think it is plainly shown. A decree must be entered in the plaintiff’s favor.