72370921
Sep 17, 1970
Aug 22, 1972
SUBTERRANEAN SEWER LINE REPAIR EQUIPMENT; NAMELY, TRUCK OR TRAILERS HAVING A COMBINATION OF EQUIPMENT BUILT THEREIN FOR INSPECTING AND REPAIRING SUBTERRANEAN PIPE INCLUDING TV CAMERA AND RECEIVERS, LEAK OR FAULT PACKERS, ELECTRIC GENERATORS, MOTORS, AND THE LIKE
Nonmetallic Building Materials