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Measuring and Controlling Devices, NEC
Air Quality Measuring Equipment
Alcohol Breath Detectors Manufacturers
Fire Detector Systems, Non-Electric
Geophysical and Meteorological Testing Equipment
Liquid Leak Detection Equipment
Measuring/Controlling Devices (Unclassified) Manufacturers
Medical Diagnostic Systems, Nuclear
Physical Property Testing Equipment
Plotting Instruments, Drafting and Map Reading
Seismograph Equipment and Supplies Manufacturers
Spectrometers, Liquid Scintillation and Nuclear
Stress, Strain, and Flaw Detecting/Measuring Equipment
Testers for Checking Hydraulic Controls On Aircraft