USD486816SExpiredUtility

Audio signal amplifier

83
Assignee: YAMAHA CORPPriority: Dec 16, 2002Filed: May 28, 2003Granted: Feb 17, 2004
Est. expiryDec 16, 2022(expired)· nominal 20-yr term from priority
Inventors:Kazuhito NakajimaTakashi Akiyama
83
PatentIndex Score
28
Cited by
10
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an audio signal amplifier, as shown.

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