72343900
Nov 19, 1969
Jul 4, 1972
EARTH AUGERS AND PARTS THEREOF, BORING HEADS, TEETH FOR EARTH-DIGGING EQUIPMENT, HAND-TYPE HAMMERS, [ CABLE PULLERS, REEL WINDERS, WIRE STRINGERS, TRAVELLER SHEAVES, PULLING EYES, MARINE WINCHES, REEL STANDS, AND LIFE SUPPORT SYSTEMS COMPRISING UNDERWATER EXPLORATION CHAMBERS, WINCHES FOR RAISING AND LOWERING SUCH CHAMBERS, AND WIRES, CABLES, HOSES AND TUBES FOR SUPPLYING AIR, POWER AND TELEPHONE COMMUNICATIONS TO SUCH CHAMBERS ]
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