USD306859SExpiredUtility

Add-on module for a homogeneous unit telephone set

Assignee: NORTHERN TELECOM LTDPriority: Jan 6, 1989Filed: Jan 6, 1989Granted: Mar 27, 1990

Est. expiryJan 6, 2009(expired)· nominal 20-yr term from priority

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exact text as granted — not AI-modified

The ornamental design for an add-on module for a homogeneous unit telephone set, as shown and described.

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