A PIPE DIE STOCK FOR VARIOUS SIZES OF PIPE. AN IMPROVED SPRINGLESS LOCK. WHEELER'S KNIFE-GRINDING MACHINE. AN AUTOMATIC GRAIN MEASURING MACHINE. KERSHAW'S ROTATING GRAIN MEASURER. AN IMPROVED WINDOW FRAME. GALLOWAY'S ' LIGHTNING ' DIE STOCK FOR PIPE., scientific american, 1891-11-28
A PIPE DIE STOCK FOR VARIOUS SIZES OF PIPE. AN IMPROVED SPRINGLESS LOCK. WHEELER'S KNIFE-GRINDING MACHINE. AN AUTOMATIC GRAIN MEASURING MACHINE. KERSHAW'S ROTATING GRAIN MEASURER. AN IMPROVED WINDOW FRAME. GALLOWAY'S ' LIGHTNING ' DIE STOCK FOR PIPE., scientific american, 1891-11-28
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