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Measuring and Controlling Devices, NEC
Aircraft and Motor Vehicle Measurement Equipment
Alcohol Breath Detectors Manufacturers
Fare Registers, for Street Cars, Buses, Etc.
Fatigue Testing Machines, Industrial: Mechanical
Geophysical or Meteorological Electronic Equipment
Measuring/Controlling Devices (Unclassified) Manufacturers
Medical Diagnostic Systems, Nuclear
Physical Property Testing Equipment
Plotting Instruments, Drafting and Map Reading
Radioactivity Instruments Supplies and Service
Testing Equipment: Abrasion, Shearing Strength, Etc.