73570743
Nov 27, 1985
Jun 9, 1987
FIBER OPTIC SENSORS AND FIBER OPTICS, INFRARED SENSORS, PHOTO-ELECTRIC CONTROL AMPLIFIERS, OPTIC REFLECTION SENSORS, OPTIC THROUGH BEAM SENSORS, REFLECTORS, CODED WIRELESS CONTROL, AUTOMATIC DAYLIGHT SWITCH, FIBER OPTIC CONTROL UNITS, OPTIC PROXIMITY AND PRESENCE SENSORS, LINEAR DISPLACEMENT SENSORS, UTRA SONIC SENSORS, AND MAGNETIC DETECTION LOOPS
Electrical and Scientific Apparatus