USD282541SExpiredUtility

Main key telephone system casing

60
Assignee: NITSUKO LTDPriority: May 17, 1983Filed: Jul 21, 1983Granted: Feb 11, 1986
Est. expiryMay 17, 2003(expired)· nominal 20-yr term from priority
Inventors:Hideaki Yasuda
60
PatentIndex Score
8
Cited by
8
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a main key telephone system casing, substantially as shown and described.

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