NEW CAR COUPLING. I AUTOMATIC HUB HUB MORTISING MACHINE. Fire by Friction. MISCELLANEOUS INVENTIONS. PECK'S CAR COUPLING. DOUBLE-CHISEL AUTOMATIC HUB MORTISING MACHINE., scientific american, 1880-04-24
NEW CAR COUPLING. I AUTOMATIC HUB HUB MORTISING MACHINE. Fire by Friction. MISCELLANEOUS INVENTIONS. PECK'S CAR COUPLING. DOUBLE-CHISEL AUTOMATIC HUB MORTISING MACHINE., scientific american, 1880-04-24
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