72051820
May 16, 1958
Dec 9, 1958
CRANES AND MOTORIZED EARTH MOVING AND MATERIAL HANDLING EQUIPMENT, ACCESSORIES, ATTACHMENTS AND PARTS THEREFOR; BACK HOES; SHOVELS; BLADES; BUCKETS; TEETH; DRIVE MECHANISMS; CRAWLERS; BULLDOZERS; LOADERS; GRAPPLES; PILE DRIVERS; TRENCHERS; POWER PLANTS; POWER OPERATED HOIST AND WINCH MECHANISMS MOUNTED ON STATIONARY OR MOBILE SWING PLATFORMS AND ATTACHMENTS THEREFOR; MAGNETS; HOISTS; WINCHES; FAIRLEADS; CLUTCHES; BOOMS; MOTORIZED CARRIERS OF THE WHEEL AND CRAWLER TYPE; AND TRACTORS
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