SRL

ELECTRICAL SUPERVISION AND CONTROL APPARATUS-NAMELY, ANALOG SIGNAL PROCESSING CONSOLES, AUDIO AND VIDEO AMPLIFIERS, OSCILLOSCOPES, FILTERS, RECORDERS, POWER SUPPLIES, SWEEP GENERATORS, SWITCHING MATRIX, FLUTTER COMPENSATORS, PULSE REPETITION FREQUENCY SYNTHESIZERS, MULTIPLE EVENT CORRELATORS, SIGNAL MODIFIERS; AND POLYMER ANALYZERS; DATA PROCESSORS; DATA COLLECTORS AND ANALYZERS; COMPUTER INTERFACES AND EARTH CURVATURE COMPENSATORS; OPTICAL INSTRUMENTS-NAMELY, OPTICAL MICROMETERS, DIGITAL OPACIMETERS, DISTANCE MEASURING AND INDICATING GAUGES, AND INFRARED SENSORS; TELEVISION CAMERAS AND ASSOCIATED IMAGERS AND PROCESSORS; THIN FILM DISPOSITION UNITS; VACUUM COMPONENT TESTERS; HIGH TEMPERATURE FURNACE FOR TESTING COMPONENTS; PHOTOGRAPIC FILM PROCESSORS; AND CALIBRATED GLASSWARE