USD285680SExpiredUtility

Switching exchange for telephone and/or data communication

82
Assignee: NORTHERN TELECOM LTDPriority: Feb 14, 1984Filed: Feb 14, 1984Granted: Sep 16, 1986
Est. expiryFeb 14, 2004(expired)· nominal 20-yr term from priority
Inventors:Howard R. Cederberg
82
PatentIndex Score
25
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a switching exchange for telephone and/or data communication, substantially as shown and described.

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