ELECTRIC FLASHLAMPS AND ELECTRONIC TUBES; SOLID STATE ELECTRONIC DEVICES AND CIRCUITS-,NAMELY, PHOTO DIODES, BINARY PHOTO DETECTORS, QUADRATURE PHOTO DETECTORS, PHOTO DETECTOR MATRICES, LITHIUM DRIFT RADIATION DETECTORS, DIFFUSED RADIATION DETECTORS; SPECIAL MICRO-ELECTRONIC INTEGRATED CIRCUITS; MICROWAVE TRANSMITTING AND RECEIVING EQUIPMENT; UNDERWATER SOUND TRANSMITTING AND RECEIVING SYSTEMS ANDEQUIPMENT; RADIO AND TELEVISION BROADCASTING AND RECEPTION EQUIPMENT; POINT-TO POINT RELAY COMMUNICATION EQUIPMENT. ELECTRONIC STROBOSCOPIC AND OTHER INSTRUMENTS-NAMELY, MOTION AND STILL PICTURE RECORDING APPARATUS FOR PHOTOGRAPHING SCIENTIFIC AND OTHER PHENOMENA; SUBMERSIBLE PSITION INDICATOR SYSTEMS; WATER COVERED SUBSTRATA CHARTING SYSTEMS; FLUID FLOWTICAL MEASURING AND TESTING INSTRUMENTS; PHOTOGRAPHIC SENSITOMETERS; RADIATION MEASURING AND DETECTION EQUIPMENT; ELECTRONIC LIGHT FLASH PRODUCING EQUIPMENT; ELECTRIC AND ELECTRONIC TIMERS AND AUTOMATIC AND TIMING CONTROL SYSTEMS; CONTROL SYSTEMS FOR AUTOMATION AND RELATED PURPOSES; INFORMATION ACQUISITION, COMMUNICATION, PROCESSING, DISPLAY SYSTEMS, DEVICES AND COMPONENTS; COUNTING AND LOGIC SYSTEMS; OSCILLOSCOPES AND ELECTRONIC TESTING INSTRUMENTS FOR MEASURING PHYSICAL AND ELECTRICAL PROPERTIES AND PHENOMENA; NAVIGATIONAL ELECTRONIC EQUIPMENT; INSTRUMENTATION FOR SPACE RADIATION MEASUREMENT.