73180900
Aug 3, 1978
Dec 11, 1979
Active Trademark
LIQUID-LEVEL SWITCHES, FLOW SWITCHES, TANK-LEVEL INDICATING SYSTEMS, AND ACCESSORIES THEREFOR-NAMELY, SOLID-STATE CONTROLS, TRANSMITTERS, RECEIVERS, AUDIO-ALARM UNITS, VISUAL-ALARM UNITS, AND CABLE ASSEMBLIES
Electrical and Scientific Apparatus