75783113
Aug 24, 1999
Aug 21, 2001
MECHANIC, ELECTRONIC, OPTIC, CAPACITIVE AND MAGNETIC FLUID LEVEL AND FLUID VOLUME CONTROLS AND SENSORS, NAMELY, LEVEL CONVERTER TRANSMITTERS, LEVEL CONTROLLERS COMPRISING FLOATERS, BY-PASS LEVEL INDICATOR TRANSMITTERS, LEVEL DETECTORS COMPRISING ELECTRODES, MAGNETIC-CONTROL SWITCHES, ANALOGUE AND DIGITAL INSTRUMENTS FOR MEASURING FLUID LEVEL AND FLUID VOLUMES, ULTRASOUND LEVEL TRANSMITTERS, VOLUME DETECTORS TRANSMITTERS
Electrical and Scientific Apparatus