Audio signal amplifier

Details Audio signal amplifier Audio signal amplifier

2003-05-28

2004-02-17

Deshmukh, Prabhakar (Department: 2912)

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Combined

CD14S188000

Design Patent

active

D0486816

CLAIM:
The ornamental design for an audio signal amplifier, as shown.

REFERENCES:
patent: D271694 (1983-12-01), Nomura et al.
patent: 4676619 (1987-06-01), Woolley
patent: D319060 (1991-08-01), Rashak
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patent: 5285500 (1994-02-01), Mantz
patent: D409194 (1999-05-01), Ridinger
patent: D422589 (2000-04-01), Jeon
patent: D435034 (2000-12-01), Tejima
patent: D451084 (2001-11-01), Su
patent: D478564 (2003-08-01), Rizzi

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