Hearing aid

Details Hearing aid Hearing aid

1996-09-19

1997-10-14

Reid, Stella

Medical and laboratory equipment

Equipment for diagnosis, analysis, or treatment

Auricular

2499

Patent

active

D03850366

REFERENCES:
patent: D251234 (1979-03-01), Hakansson et al.
patent: D294562 (1988-03-01), Chao
patent: D322319 (1991-12-01), Van Mourik
patent: D354568 (1995-01-01), Araki et al.

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