U.S. federal trademark · Serial No. 76347776 · Reg. No. 2856356
CONTINUOUS NOISE EXPOSURE MONITORING SYSTEM, NAMELY, A PERSONAL NOISE DOSIMETER COMPRISING A MICROPHONE, TRANSMITTER AND MICROPROCESSOR CHIP INTEGRATED WITH HEARING PROTECTION DEVICES, NAMELY EAR MUFFS AND EAR PLUGS TO MEASURE INDIVIDUAL NOISE EXPOSURE
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