USD291081SExpiredUtility

Telephone network interface device

Assignee: GTE PROD CORPPriority: Jan 13, 1986Filed: Jan 13, 1986Granted: Jul 28, 1987
Est. expiryJan 13, 2006(expired)· nominal 20-yr term from priority
70
PatentIndex Score
13
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a telephone network interface device substantially as shown and described.

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