USD328300SExpiredUtility

Extension ringing console apparatus for telephone sets

38
Assignee: NITSUKO LTDPriority: May 25, 1990Filed: Oct 26, 1990Granted: Jul 28, 1992
Est. expiryMay 25, 2010(expired)· nominal 20-yr term from priority
Inventors:Akiyoshi HattoriMasanori Suzuki
38
PatentIndex Score
3
Cited by
9
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an extension ringing console apparatus for telephone sets, as shown and described.

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