71392509
May 8, 1937
Apr 5, 1938
MACHINE TOOL CUTTERS, CYLINDERS EMPLOYING COMPRESSED AIR FOR THE ACTUATION OF MACHINES AND MACHINE PARTS, REMOTE CONTROL SYSTEMS FOR MANUAL OPERATION BY THE OPERATOR AND PARTS THEREOF FOR OPERATING MACHINES, MANDRELS AND COLLETS, DRILL PRESS FIXTURES, ARBOR PRESSES, AND CYLINDERS EMPLOYING HYDRAULIC PRESSURE FOR OPERATING MACHINES AND MACHINE PARTS
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