USD323167SExpiredUtility

Headphone

89
Assignee: SONY CORPPriority: Jun 14, 1988Filed: Dec 7, 1988Granted: Jan 14, 1992
Est. expiryJun 14, 2008(expired)· nominal 20-yr term from priority
Inventors:Nobutsugu YamazakiKazue Kato
89
PatentIndex Score
53
Cited by
6
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a headphone, as shown.

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