72013160
Jul 31, 1956
Mar 12, 1957
DOUBLE ENVELOPING WORMS AND GEARS, GEAR SETS, SPEED REDUCERS, HOBS, CUTTERS, MACHINES FOR CUTTING DOUBLE ENVELOPING WORMS AND GEARS, MACHINES FOR FINISHING DOUBLE ENVELOPING WORMS AND GEARS, AND CHECKING MACHINES
Yarns and Threads