MR. JUSTICE BLATCHFORD delivered the opinion of the court.
This is a suit in equity, brought by the administrators of John H. Gorham, deceased, against Edwin K. Burgess, in the Circuit Court of the United States for the Eastern District of Pennsylvania, to recover for the alleged infringement of letters patent No. 223,338, granted to John M. Gorham, January 6, 1880, for an improvement in wash-board frames.
The following is a copy of the specification and drawings...
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