OPTICAL EMISSIONS SPECTROMETERS

Laboratory, Machine Shop and Other Uses, Measuring Instruments, and Parts Thereof-Namely, Precision Levels; Clinometers, and Work Tables, Supporting Bases and Optical Reflectors Therefor; Autocollimators and Mounting Brackets, Stands, and Levelling Bases Therefor, and Optical Reflectors, Reflector Carriages, Prisms, Gauges, Electric and Photoelectric Read Outs and Recorders, Automatic Position Sensors, Small Angle Generators, Optical Rotating Units, Angle Calibration Units, and Optical Sighti...

Synthetic crystals used in infrared spectroscopy, X-ray and Gamma-ray detection, and optical telecommunications