Assistive listening device

Details Assistive listening device Assistive listening device

2008-07-22

2008-07-22

Greene, Paula A. (Department: 2912)

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

Design Patent

active

29267979

CLAIM:
The ornamental design for an assistive listening device, as shown and described.

REFERENCES:
patent: 2812826 (1957-11-01), Hawley
patent: D182820 (1958-05-01), Kamp
patent: 4789044 (1988-12-01), Akino
patent: 5548658 (1996-08-01), Ring et al.
patent: 6401860 (2002-06-01), Ellington et al.
patent: 6721432 (2004-04-01), Yamamoto
patent: 7050597 (2006-05-01), Akino

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