USD320211SExpiredUtility

Telephone transferring switchboard

50
Assignee: TOSHIBA KKPriority: Dec 12, 1989Filed: Jun 11, 1990Granted: Sep 24, 1991
Est. expiryDec 12, 2009(expired)· nominal 20-yr term from priority
Inventors:Takaharu Ando
50
PatentIndex Score
6
Cited by
12
References
1
Claims

Claims

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

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