Exam (elaborations)
ILE EXAM HEARING AIDS 2024 QUESTIONS WITH ANSWERS 100% VERIFIED
- Course
- Institution
Hand Cupped Behind Ear - CORRECT ANSWER -first Hearing Aid -increased sound by 5-8db -included horns,trumpets, speaking tubes 1892 - CORRECT ANSWER -carbon amplifiers patent by Alexander Bell -marketed until 1930;first patent for a telephone type hearing instrument 1920 - CORREC...
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