USD337116SExpiredUtility

Combined headphone and microphone

Assignee: SONY CORPPriority: Aug 14, 1991Filed: Dec 31, 1991Granted: Jul 6, 1993

Est. expiryAug 14, 2011(expired)· nominal 20-yr term from priority

PatentIndex Score

128

Cited by

References

Claims

exact text as granted — not AI-modified

The ornamental design for a combined headphone and microphone, as shown and described.

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