73331863
Oct 9, 1981
Sep 14, 1982
Instruments for the Physical and Chemical Detection and Analysis of Materials-Namely, Refractometers, Moisture Analyzers, Infrared Analyzers, Analytical Photometers, Thermal Conductivity Analyzers, Suspended Solids Monitors, Collectors for Sampling, Mass Spectrometers, Residual Gas Analyzers, Ultraviolet Analyzers, Oxygen Analyzers, and Dust Monitors
Electrical and Scientific Apparatus