72233381
Nov 26, 1965
Oct 31, 1967
SPECIAL PURPOSE EQUIPMENT FOR MOUNTING ON TRUCKS AND TRAILERS AS UNITARY PARTS THEREOF-NAMELY, POWER DERRICKS, POWER DIGGERS, POWER LIFTS, EXTENSIBLE TOWERS AND BOOMS FOR CARRYING PERSONNEL AND WORKING EQUIPMENT ALOFT, JACKS AND PROPS, MANUAL AND POWER OPERATED LADDERS, WINCHES, AND ACCESSORIES THEREFOR
Yarns and Threads