73491304
Jul 23, 1984
Sep 3, 1985
ATTACHMENTS FOR SAND BLASTING MACHINES TYPICALLY USED IN CLEANING THE SURFACES OF BRIDGES, BUILDINGS, FLOORS, ROADS, AND INDUSTRIAL EQUIPMENT, NAMELY A BAG BREAKER AND SCREEN MOUNTABLE ON A PRESSURIZED SUPPLY TANK COMPONENT OF THE MACHINE, CAUSING SAND TO FLOW FROM A BROKEN SAND BAG INTO THE TANK
Machinery