74495610
Mar 1, 1994
Oct 8, 1996
high and low pressure pneumatic material handling systems consisting of blowers, feeders, pipes, elbows, cyclones, fans, airlocks, fittings, support structures, baghouse filters, explosion vents, abort gates, and spark detectors; and power driven material handling systems consisting of rollcases, chain transfers, and screw, belt, and chain conveyors, and bins, feeders and stackers, used in the building materials industry
Machineryconstruction, installation and maintenance of high and low pressure pneumatic material handling systems and power driven material handling systems
Building Construction and Repairengineering and designing of high and low pressure pneumatic material handling systems and power driven material handling systems
Computer and Scientific