DECEMBER Information about Caveats Extensions Interferences Designs Trade Marks; als Foreign Patents. CONSULTATIONS AND OPINIONS FREE. TO APPLY FOR A PATENT PRELIMINARY EXAMINATION COST OF APPLICATIONS. REJECTED CASES. CAVEATS REISSVES. DESIGNS TRADE MARKS AND COMPOSITIONS PATENTS CAN BE EXTENDED. INTERFERENCES FOREIGN PATENTS., scientific american, 1869-12-11


DECEMBER Information about Caveats Extensions Interferences Designs Trade Marks; als Foreign Patents. CONSULTATIONS AND OPINIONS FREE. TO APPLY FOR A PATENT PRELIMINARY EXAMINATION COST OF APPLICATIONS. REJECTED CASES. CAVEATS REISSVES. DESIGNS TRADE MARKS AND COMPOSITIONS PATENTS CAN BE EXTENDED. INTERFERENCES FOREIGN PATENTS., scientific american, 1869-12-11


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