OPTOELECTRONIC TIMERS AND SENSORS; NAMELY HIGH-FREQUENCY POST LASERS, SEMI-CONDUCTOR LASERS, LASER SCANNERS, LASER RANGING DEVICES, OPTOELECTRONIC WAVEGUIDES, OPTOELECTRONIC SEMI-CONDUCTOR TIMING DEVICES, OPTOELECTRONIC FREQUENCY GENERATORS, AND OPTOELECTRONIC CLOCK SIGNAL GENERATORS
Electrical and Scientific Apparatus