radon survey meter for detecting and measuring radon and radon surveys to detect and measure radon

computer hardware and computer software for use in processing weather radar data

ELECTRICAL DEVICES IN GENERAL-NAMELY, RADIOS, RADIO AND TELEVISION TUBES, RECTIFIERS, TRANSFORMERS, HIGH CAPACITOR KITS, RESISTORS, TOGGLE SWITCHES, KNIFE SWITCHES, PHONOGRAPH PLUGS AND JACKS; AND MONAURAL AND STEREO EQUIPMENT-NAMELY, PHONOGRAPH TURNTABLES, PICKUP ARMS, AUDIO HEAD DEMAGNETIZERS, SPEAKERS, TAPE RECORDERS, AND RECORD TAPE SPLICERS, IN PARTICULAR