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EVANS v. EATON

20 U.S. 356 (1822)

7 Wheat. 356

EVANS v. EATON.

Supreme Court of United States.

March 20, 1822.

Attorney(s) appearing for the Case

Mr. C.J. Ingersoll,a for the plaintiff.

Mr. Sergeant, contra.

Mr. Justice WASHINGTON.

This is an action for an infringement of the plaintiff's patent, which the plaintiff alleges to be,

1. For the whole of the machine employed in the manufacture of flour, called the Hopperboy.

2. For an improvement on the Hopperboy.

The question is, is the plaintiff entitled to recover upon either of these claims? The question is stated thus singly, because the defendant admits...

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