73254551
Mar 18, 1980
Oct 6, 1981
Scientific Apparatuses and Instruments-Namely, Resistivitymeter Featuring a Microprocessor, Data Memories, DC-DC Converter, Display Computer Unit, Receiving and Transmitting Apparatuses, DC Intensity Meters, Filters, Units for Measurement of the Spontaneous Polarisation Drift and the Like
Electrical and Scientific Apparatus