USD271694SExpiredUtility

Audio amplifier

80
Assignee: PIONEER ELECTRONIC CORPPriority: Jan 9, 1981Filed: Jul 8, 1981Granted: Dec 6, 1983
Est. expiryJan 9, 2001(expired)· nominal 20-yr term from priority
Inventors:Toshihito NomuraHirotaka Imai
80
PatentIndex Score
21
Cited by
3
References
1
Claims

Claims

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

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