73171468
May 22, 1978
Jul 21, 1981
Active Trademark
Electronic Test Units for Testing Hearing Aids and Other Acoustic Units; [ Auditory Trainers for Amplifying Sound for Hard of Hearing Individuals; Battery Chargers and Electric Cords for Hearing Aids; ] Electronic Printers; Microphones; Microphone Couplers and Sound Chambers
Electrical and Scientific Apparatus