73224113
Jul 20, 1979
Nov 3, 1981
Pneumatic, Electrical Motor and Electrothermal Drives for Final Control Elements, Valve Drives All for Heating, Ventilation and Air-Conditioning
MachineryRegulators for Non-Electrical Measuring-Namely, Temperature, Pressure, Moisture, Density and Level Regulators, Preferably for Use in Heating, Ventilation and Air-Condtioning Units
Electrical and Scientific Apparatus