MR. JUSTICE HUNT delivered the opinion of the court.
William M. Welling brought this suit in the Circuit Court against the Rubber-Coated Harness-Trimming Company and others, alleging an infringement of his letters-patent No. 37,941, bearing date March 17, 1863, for an improvement in rings for martingales, and recovered damages. The company thereupon appealed to this court.
Welling's patent bears date of March 17, 1863, and recites that a previous patent to...
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