Practical hints to Inventors. How Can I Obtain a Patent How Can I Best Secure My Invention? Preliminary Examination. To Make an Application for a Patent. Caveats. Reissues. Rejected Cases. Trademarks. Design Patents. Canadian Patents. European Patent $7 Park Row New York. Back Page 9100 a line To Investors. Milling Machines. PATENT IMPROVED VARIETY MOLDING MACHINERY And Adjustable Trade-Mark Patents. Dead Stroke Hammer. THE circular Ode Valve SELF PRIMING 'CINCINNATI STAR PUMP' NEW BOILER FOR SALE – Universal Wood Worker Horizontal and Upright Boring Machines. United States Electro Motor and Battery Co. 19 Court landt Street New York. Fairmount Machine Works OFFICE 2106 WOOD STREET Philadelphia Pa. Canadian Inventors MUNN & C 37 Park Row New York IIACHINERY 37 Park Row. New York., scientific american, 1872-10-05
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