USD316551SExpiredUtility

Headphone

Assignee: SONY CORPPriority: Jun 29, 1988Filed: Dec 29, 1988Granted: Apr 30, 1991

Est. expiryJun 29, 2008(expired)· nominal 20-yr term from priority

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Claims

exact text as granted — not AI-modified

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

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