Pioneer bone-conduction hearing aid

Pioneer bone-conduction hearing aid (vibration transmitter

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Pioneer bone-conduction hearing aid (vibration transmitter
Science Museum Group
© The Board of Trustees of the Science Museum

Pioneer bone-conduction hearing aid (vibration transmitter only).

Details

Category:
Sound Reproduction
Object Number:
1957-92
type:
hearing aid
credit:
Mr. C.M.R. Balbi.