Air-conduction hearing aid clamps
United States Patent 2946394
US Patent References:
/0404868.html
- - 0404868

/1096024.html
- - 1096024

Eyeglasses
- - 1975490

Hearing aid device
- - 2207705

Sound listening device
- - 2215585


Inventors:
Smith, Alonzo L.
Publication Date:
07/26/1960
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Assignee:
Smith, Alonzo L.
Primary Class:
181/135
Other Classes:
351/158, 381/330, 128/866, 381/327
International Classes:
A61F11/00
US Patent References:
2437490Ear defender
2503275Adjustable eyeglass temple
2513746Hearing aid support
2566313Sound conducting tube for hearing aids
2792457Hearing aid embodied in spectacles
Foreign References:
DE344526C
FR537556A
GB541226A
IT494016B