73313701
Jun 8, 1981
May 24, 1983
Radioactivity Detectors and Gaseous Fillings, Voltage Supplies, Mounts and Shields Therefor; Amplifiers, Scalers, and Timers for Radiation Pulses and Radiation-Induced Currents; Counting-Rate Meters; Radiation Analyzers and Spectrometers; Electrometers; Chargers and Readers for Ionization Chambers; Personnel Radiation Shields and Shield Blocks; Calibrated Radiation Absorbers; Radioactive Sources; Radioactive Sample Handling; Pulse Generators Simulating Radiation Pulses; Radioactivity Warning Apparatus; Radioactivity Calculating Slide Rules; Systems Comprising Combinations of Such Apparatus; and Mounts and Carriages for Such Systems
Electrical and Scientific Apparatus