73128649
May 31, 1977
Apr 18, 1978
PNEUMATIC CONVEYING SYSTEMS FOR BULK GRANULAR MATERIALS AND COMPONENT PARTS OF SUCH SYSTEMS, INCLUDING: TRANSPORTERS, VALVES, AIR BOOSTER VALVES, MECHANICAL SWITCHES, MECHANICAL RECEIVERS, TUBING, TUBING BENDS, BAG BREAKERS, AIR CONTROLS, AIR CONTROL PANELS, MIXERS, BLENDERS, DIVERTERS AND MECHANICAL GATES
Machinery