USD289289SExpiredUtility

Telephone headset hearing aid

64
Assignee: NORTHERN TELECOM LTDPriority: Jul 31, 1984Filed: Jul 31, 1984Granted: Apr 14, 1987
Est. expiryJul 31, 2004(expired)· nominal 20-yr term from priority
Inventors:Jacek WojcikAndrzej A. PrzybyszPeter R. Milton
64
PatentIndex Score
10
Cited by
11
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a telephone headset hearing aid, substantially as shown and described.

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