Hearing aid device

Details Hearing aid device Hearing aid device

2008-05-06

2008-05-06

Zarfas, Louis S. (Department: 2914)

Medical and laboratory equipment

Equipment for diagnosis, analysis, or treatment

Auricular

Design Patent

active

29255174

CLAIM:
The ornamental design for a hearing aid device, as substantially shown and described.

REFERENCES:
patent: D322319 (1991-12-01), van Mourik
patent: D385036 (1997-10-01), Nielsen
patent: D506258 (2005-06-01), Nielsen
patent: D532111 (2006-11-01), Espersen

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