HEARING AID HAVING RESILIENT HOUSING
United States Patent 3527901
US Patent References:
Transducer suspension
- - 3019306
In-the-ear hearing aid
- - 3197576
Hearing aid
- - 3209082
Transducer suspension
- - 3019306
In-the-ear hearing aid
- - 3197576
Hearing aid
- - 3209082
Inventors:
Geib, Robert L.
Publication Date:
09/08/1970
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Assignee:
DAHLBERG ELECTRONICS
Primary Class:
Other Classes:
381/322, 381/324
International Classes:
H04R25/02; H04R25/00
Foreign References:
| IT598919B |