U.S. federal trademark · Serial No. 72137339 · Reg. No. 0744409
AUDIOMETERS, PSYCHOGALVANOMETERS, RECORDING ATTENUATORS, PULSE AND NOISE GENERATORS, SHOCK GENERATORS, TEST CHAMBERS, RESPONSE CONVERTERS, GROUP HEARING AIDS, AND COUNTING, RECORDING AND READ-OUT EQUIPMENT FOR PSYCHOACOUSTIC APPARATUS, AUDIOMETRIC TESTING AND AUDITORY TRAINING EQUIPMENT, AND BEHAVIORAL RESEARCH APPARATUS
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