USD271301SExpiredUtility

Telephone switch-connector unit

74
Assignee: ZOOM TELEPHONICS INCPriority: Jan 15, 1981Filed: Jan 15, 1981Granted: Nov 8, 1983
Est. expiryJan 15, 2001(expired)· nominal 20-yr term from priority
Inventors:Frank B. ManningPeter R. KramerT. Pat Manning
74
PatentIndex Score
15
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a telephone switch-connector unit, substantially as shown and described.

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