USD247705SExpiredUtility

Microphone

75
Assignee: ARMSTRONG WILLIAM JPriority: Apr 1, 1977Filed: Apr 1, 1977Granted: Apr 11, 1978
Est. expiryApr 1, 1997(expired)· nominal 20-yr term from priority
Inventors:William J. Armstrong
75
PatentIndex Score
11
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a microphone, substantially as shown and described.

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