MR. JUSTICE MATTHEWS delivered the opinion of the court.
This is a bill in equity, filed by the appellants, to restrain the appellees from infringing reissued letters-patent No. 6166, dated Dec. 8, 1874, to George Nimmo, for an improvement in moulding crucibles, and for an account, the patent having been reissued to the complainants as assignees of Nimmo, the inventor and original patentee.
The original patent, No. 49,140, granted to him, bears date Aug. 1...
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