73794582
Apr 20, 1989
Oct 2, 1990
MIXING, POWDER PROCESSING AND DRYING MACHINES FOR USE IN THE CHEMICAL, PHARMACEUTICAL, AND FOOD PROCESSING INDUSTRIES, AND VALVES THEREFOR
MachineryELECTRONIC HEATING AND COOLING CONTROLS FOR USE IN MIXING AND POWDER PROCESSING MACHINES USED IN THE CHEMICAL, PHARMACEUTICAL, AND FOOD PROCESSING INDUSTRIES
Electrical and Scientific Apparatus