Title:
IN-THE-EAR HEARING AID UNIT
United States Patent 3496306
Inventors:
Pollak, Manfred J.
Publication Date:
02/17/1970
Export Citation:
Click for automatic bibliography generation
Assignee:
Manfred, Pollak J.
Primary Class:
381/328
Other Classes:
29/896.21, 381/324
International Classes:
H04R25/02; (IPC1-7): H04R25/02
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US Patent References:
3359377Hearing aid, particularly spectacle type hearing aid
3170046Hearing aid
Foreign References:
GB1006212A




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