75708738
May 18, 1999
Sep 9, 2003
ELECTRIC VALVE ACTUATORS FOR VALVES IN PIPING SYSTEMS, NAMELY, WASTEWATER TREATMENT FACILITIES, OIL AND GAS REFINERY PIPELINES, AND WATER SUPPLY PIPELINES
Electrical and Scientific ApparatusWASTEWATER TREATMENT SYSTEM COMPONENTS, NAMELY, MOTORIZED VALVE ACTUATORS
Environmental Control Apparatus