Mr. Justice WASHINGTON delivered the opinion of the Court.
This was a suit commenced by the plaintiff, Keplinger, in the Fourth Circuit for the District of Maryland, against the defendant, for the violation of the plaintiff's patent right, secured to him according to law, in a certain new and useful improvement, to wit, a machine for making watch chains, &c. The third count in the declaration, upon which alone this cause has been argued, is in the usual form,...
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