Title:
Hearing aid
United States Patent 3170046
US Patent References:
Binaural hearing-aid device
- - 2930858
Electronic sound transmitting device
- - 2950357
Electronic intensifying ear-drum
- - 2967913
In-ear hearing aid
- - 2987584
Binaural hearing-aid device
- - 2930858
Electronic sound transmitting device
- - 2950357
Electronic intensifying ear-drum
- - 2967913
In-ear hearing aid
- - 2987584
Inventors:
Leale, Leslie P.
Publication Date:
02/16/1965
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Export Citation:
Assignee:
EARMASTER INC
Primary Class:
Other Classes:
381/322, 381/323
International Classes:
H04R25/00; H04R25/02