MR. JUSTICE STRONG delivered the opinion of the court.
This is a bill in equity filed by Hosea Ball and Margaret Haughery, against Justin Langles and N.A. Baumgarden, composing the firm of Baumgarden & Langles. It charges an infringement by the defendants of reissued letters-patent granted to Ball, June 14, 1870, for an alleged new and useful improvement in ovens. The original patent was granted to him on the 23d of September, 1856, for a period of fourteen years...
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