U.S. federal trademark · Serial No. 72164897 · Reg. No. 0768172
Aircraft Instruments and Gauges-Namely, Air Temperature and Oil Pressure Gauges, and Ammeters; Measuring and Testing Apparatus for Breathing Equipment and Components Thereof, and Portable Direct-Reading Toxic Gas Detectors of the Type for Use in Conjunction with Breathing Equipment with a Hand Operated Bellows Pump and Interchangeable Glass Detector Tubes Calibrated to Show the Amount of Toxic Gas Present in the Air Being Tested
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