73445923
Sep 29, 1983
Dec 25, 1984
Electronic Measuring Instruments for Measuring Physical Properties-Namely, Temperature, Degree of Moisture, Wind Intensity, Speed, pH, Temperature Differences, Ionic Concentration, Oxygen Content, Conductivity, Weight, Pressure, Voltage, Thickness, and Frequency, Adaptable for Connection to an Electronic Measuring Processor
Electrical and Scientific Apparatus