72211941
Feb 12, 1965
Jan 11, 1966
MECHANICAL AND HYDRAULIC POLE HOLE DIGGERS, DERRICK STORAGE KITS FOR SWINGABLY INVERTING DERRICKS ON VEHICLES, TRUCK BODIES, DERRICKS, FORWARDREVERSE TRANSMISSIONS, DERRICK MOUNTING ATTACHMENTS FOR TRUCKS TO PROVIDE A SWINGABLE AXIS OF PIVOT FOR THE DERRICKS FOR THE FACILITATION OF MOVEMENT OF THE DERRICK BETWEEN OPERATIVE AND STORED POSITIONS, HYDRAULIC WINCH DRIVES AND TRANSMISSIONS, POWERED POLE TAMPERS, AND A-FRAMES FOR DERRICKS
Yarns and Threads