USD318669SExpiredUtility

Headphone

Assignee: SONY CORPPriority: Oct 17, 1988Filed: Mar 17, 1989Granted: Jul 30, 1991

Est. expiryOct 17, 2008(expired)· nominal 20-yr term from priority

PatentIndex Score

119

Cited by

References

Claims

exact text as granted — not AI-modified

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

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