STROUDSBURG PA. EMERY WHEELS AND CRINDERS. WARD IRON WORKS Shaping Machines Iron Working Machinery Shafting Pulleys &c. YALE IRON WORKS New Haven Comm Nap del For 1877 THE MOST POPULAR SCIENTIFIC PAPER IN THE WORLD. VOLUME XXXVINEW SERIES. TERMS OF SUBSCRIPTION. The Scientific American Supplement. AND AIR COMPRESSORS. MACHINISTS' TOOLS. NEW HAVEN MANUFACTURING CO. New Haven Conn. STEAM BOILER Inspection & Insurance 'PATENT C OLD ROLLED SHAFTING. 01. CUTTERS H°, 1877-02-17


STROUDSBURG PA. EMERY WHEELS AND CRINDERS. WARD IRON WORKS Shaping Machines Iron Working Machinery Shafting Pulleys &c. YALE IRON WORKS New Haven Comm Nap del For 1877 THE MOST POPULAR SCIENTIFIC PAPER IN THE WORLD. VOLUME XXXVINEW SERIES. TERMS OF SUBSCRIPTION. The Scientific American Supplement. AND AIR COMPRESSORS. MACHINISTS' TOOLS. NEW HAVEN MANUFACTURING CO. New Haven Conn. STEAM BOILER Inspection & Insurance 'PATENT C OLD ROLLED SHAFTING. 01. CUTTERS H°, 1877-02-17


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