9 RADAR DETECTORS FOR AUTOMOTIVE USE, BATTERY TESTERS, DC POWER SUPPLIES, ELECTRONIC THERMOMETERS, TUNERS, MULTITESTERS FOR MEASURING VOLTAGE, CURRENTS AND RESISTANCE, VOLTMETERS, OHMMETERS, EXPOSURE METERS, THICKNESS GAUGES, COMPASSES, MICROSCOPES, BINOCULARS, TELESCOPES, MAGNIFYING LENSES, BUILT-IN TEST LAMPS FOR PHOTOGRAPHIC FLASH GUNS, AND PHOTOGRAPHIC TIMERS, COMBINATION TELESCOPES AND MICROSCOPES, AND SLIDE RULES