Title:
IN-THE-EAR HEARING AID UNIT
United States Patent 3496306
US Patent References:
Hearing aid
- - 3170046
Hearing aid, particularly spectacle type hearing aid
- - 3359377
Hearing aid
- - 3170046
Hearing aid, particularly spectacle type hearing aid
- - 3359377
Inventors:
Pollak, Manfred J.
Publication Date:
02/17/1970
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Export Citation:
Assignee:
Manfred, Pollak J.
Primary Class:
Other Classes:
29/896.210, 381/324
International Classes:
H04R25/02; H04R25/02
Foreign References:
| GB1006212A |