VALUE OF PATENTS And How to Obtain Them. HOW T How Can I Best Secure My Invention? Preliminary Examination. Reissues. Value of Extended Patents. Caveats. Design Patents. Trademarks. Canadian Patents. Foreign Patents. Rejected Cases. Copies of Patents. MUNN & CO. 37 Park Row New York. 'Itivertistmtats. Back Page Inside Page .00 a line. 75 cents a line. FOURTH CINCINNATI Industrial Exposiiioll OPENS SEPT. 3 CLOSES OCT. 4 1873. The CANADIAN PATENT OFFICE RECORD AND MECHANIC'S MAGAZINE CENTENNIAL COMMISSION .0, scientific american, 1873-05-17
VALUE OF PATENTS And How to Obtain Them. HOW T How Can I Best Secure My Invention? Preliminary Examination. Reissues. Value of Extended Patents. Caveats. Design Patents. Trademarks. Canadian Patents. Foreign Patents. Rejected Cases. Copies of Patents. MUNN & CO. 37 Park Row New York. 'Itivertistmtats. Back Page Inside Page .00 a line. 75 cents a line. FOURTH CINCINNATI Industrial Exposiiioll OPENS SEPT. 3 CLOSES OCT. 4 1873. The CANADIAN PATENT OFFICE RECORD AND MECHANIC'S MAGAZINE CENTENNIAL COMMISSION .0, scientific american, 1873-05-17
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