Title:
IN-THE-EAR HEARING AID
United States Patent 3414685
US Patent References:
In-the-ear hearing aid
- - 3197576

Wax retarder baffle for hearing aids
- - 3197577

Ear canal hearing aid
- - 3312789


Inventors:
Geib, Robert L.
Martin, Richard T.
Publication Date:
12/03/1968
View Patent Images:
Assignee:
DAHLBERG ELECTRONICS
Primary Class:
Other Classes:
381/410
International Classes:
H04R25/02




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