72160043
Jan 2, 1963
Feb 18, 1964
GEIGER COUNTER TUBES, VOLTAGE REGULATORS UTILIZING CORONA DISCHARGE FOR OBTAINING STABILIZED VOLTAGES, IONIZATION CHAMBERS, SECONDARY EMISSION DETECTORS, MEDICAL INSTRUMENT SYSTEMS FOR MEASURING UPTAKE OF RADIO ISOTOPES IN TISSUE, RATE METERS FOR RADIO ACTIVITY INDICATION AND ELECTRONIC PULSE COUNTERS
Fancy Goods