"Oticon T4" transistor hearing aid
- Made:
- 1955-1965 in Copenhagen
"Oticon T4" transistor hearing aid, by the American Danish Oticon Corporation, Denmark, 1955-1965
Details
- Category:
- Audiology
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- A602530
- Materials:
- case, steel, chrome plate and frame, plastic
- type:
- hearing aids
- credit:
- Bailey, A. Optical Mission
