USD254183SExpiredUtility

Head-phone

Assignee: PHILIPS CORPPriority: Jan 11, 1977Filed: Jul 7, 1977Granted: Feb 12, 1980

Est. expiryJan 11, 1997(expired)· nominal 20-yr term from priority

PatentIndex Score

233

Cited by

References

Claims

exact text as granted — not AI-modified

The ornamental design for a head-phone, as shown.

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