USD322071SExpiredUtility
Headphone
Assignee: DAVID CLARK COMPANY INCORPORATEDPriority: Jan 27, 1989Filed: Jan 27, 1989Granted: Dec 3, 1991
Est. expiryJan 27, 2009(expired)· nominal 20-yr term from priority
91
PatentIndex Score
38
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a headphone, as shown and described.
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