Behind the ear hearing aid device

Details Behind the ear hearing aid device Behind the ear hearing aid device

1998-11-10

1999-11-02

Reid, Stella

Medical and laboratory equipment

Equipment for diagnosis, analysis, or treatment

Auricular

2404

Patent

active

D04160908

REFERENCES:
patent: D187988 (1960-05-01), Olson et al.
patent: D322319 (1991-12-01), Mourik
patent: D354568 (1995-01-01), Araki et al.
patent: D385036 (1997-10-01), Nielsen
patent: 4041251 (1977-08-01), Kaanders
patent: 4291203 (1981-09-01), Bellafiore
patent: 4296829 (1981-10-01), Pedersen
patent: 4381830 (1983-05-01), Jelonek et al.
patent: 4564955 (1986-01-01), Birch et al.

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