Telephone headset amplifier

Details Telephone headset amplifier Telephone headset amplifier

2000-09-05

2002-05-28

Asch, Jeffrey (Department: 2913)

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Telephone equipment

CD14S243000

Design Patent

active

D0457867

CLAIM:
The ornamental design for a telephone headset amplifier, shown and described.

REFERENCES:
patent: D272443 (1984-01-01), Wong et al.
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patent: 5058155 (1991-10-01), Larsen
patent: 5099514 (1992-03-01), Acree
patent: D327068 (1992-06-01), Hampf et al.
patent: D372480 (1996-08-01), Bungardt
patent: 5608797 (1997-03-01), Larsen et al.
patent: D390553 (1998-02-01), Beaumont et al.
patent: D394654 (1998-05-01), Copeland et al.
patent: D405093 (1999-02-01), Sawhney et al.
patent: D412904 (1999-08-01), Sawhney et al.
patent: D413121 (1999-08-01), Allen et al.
patent: D423002 (2000-04-01), Pedersen
patent: 6141418 (2000-10-01), Weiser et al.

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