Arrangement in receivers for placing in the auditory canal
United States Patent 3366197
US Patent References:
Mechanical hearing aid
- - 2641328
Ear plug
- - 2876767
Hearing aid
- - 2959645
Hearing aid
- - 3061689
/3130810.html
- - 3130810
Mechanical hearing aid
- - 2641328
Ear plug
- - 2876767
Hearing aid
- - 2959645
Hearing aid
- - 3061689
/3130810.html
- - 3130810
Inventors:
Gerd, Rosenstand
Publication Date:
01/30/1968
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Export Citation:
Assignee:
Danavox, Internat A. S.
Primary Class:
Other Classes:
181/132, 381/328
International Classes:
H04R25/02
US Patent References:
| 3197576 | In-the-ear hearing aid |