USD246259SExpiredUtility

Head phone

92
Assignee: MATSUSHITA ELECTRIC INDUSTRIAL CO LTDPriority: Jun 20, 1975Filed: Dec 10, 1975Granted: Nov 1, 1977
Est. expiryJun 20, 1995(expired)· nominal 20-yr term from priority
Inventors:Yasutake NishimuraMitsuhiro Hasagawa
92
PatentIndex Score
111
Cited by
3
References
1
Claims

Claims

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

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