APPLICATIONS FOR EXTENSIONS. EXTENSIONS GRANTED. DESIGNS PATENTED. TRADE MARKS REGISTERED. Value of Patents How Can I Best Secure My Invention Preliminary Exarninattoar. To Make an Application for a Patent. Caveats. Reissues. Rejected Cases. Tradetnarks. Canadian Patents. Foreign Patents. Value of Extended Patents. Copies of Patents. MUNN & 37 Park Row New York. HOW T OBTAIN Utica Steam Ellgiao Co. Back Page $1.00 a line. Inside Page 75 cents a line. Rochester N. Y. STEAM ENGINES PORTABLE & STATIONARY. Improved Circular Saw Mills Screw and flHAMPION SPRING MATTRESS—The ENGINES BOILERS & STEAM PUMPS BUTT PATTERNS AND MACHINERY. RING SPINNING 0. P. LEWIS CONSULTING ENGINEER AND HYDRAULICIAN GREAT REDUCTION IN PRICES, scientific american, 1872-12-14
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