52 Inventions Patented in England by Americans. Information about Caveats Extensions Interference; Designs Trade Marks; als Foreign Patents. CONSULTATIONS AND OPINIONS FREE. TO APPLY FOR A PATENT PRELIMINARY EXAMINATION COST OF APPLICATIONS. Without Extra Charge to the Applicant. REJECTED CASES. CAVEATS REISSUES. DESIGNS TRADE MARKS AND COMPOSITIONS PATENTS CAN BE EXTENDED. INTERFERENCES FOREIGN PATENTS., scientific american, 1870-01-15
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