USD337590SExpiredUtility

Combined microphone, speaker, and amplifier

39
Assignee: SONY CORPPriority: Oct 19, 1990Filed: Apr 19, 1991Granted: Jul 20, 1993
Est. expiryOct 19, 2010(expired)· nominal 20-yr term from priority
Inventors:Toshiaki Satoh
39
PatentIndex Score
4
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a combined, microphone, speaker, and amplifier, as shown.

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