73053019
May 21, 1975
Jun 22, 1976
AMPLIFIERS, [ ANTENNAS, ] [ AUTOMATIC DIGITAL ASSEMBLY TEST EQUIPMENT, BACKWARD-WAVE OSCILLATORS, CATHODE RAY TUBES, DEMULTIPLEXERS, ELECTRON BEAM SEMICONDUCTORS, ELECTRONIC OPTICAL DISPLAY UNITS, ] HYBRID CIRCUITS, RADIO FREQUENCY MIXERS, OSCILLATORS, [ ELECTRICAL POWER SPLITTERS, PRODUCTION AND LABORATORY FURNACES, ] RADIO FREQUENCY RECEIVERS, [ SIGNAL MONITORS, SWITCHES, ] [ TELEMETERING AMPLIFIERS, TELEMETERING RECEIVERS, TELEMETERING TRANSMITTERS, ] RADIO FREQUENCY TRANSMITTERS, [ TRAVELING-WAVE TUBES, X-RAY TUBES, ] [ YTTRIUMIRON-GARNET CRYSTALS AND YTTRIUM-IRON-GARNET FILTERS ]
Electrical and Scientific Apparatus