USD275753SExpiredUtility

Combined telephone inter communication and automatic telephone dialing device

89
Assignee: MITEL CORPPriority: Sep 15, 1981Filed: Mar 9, 1982Granted: Oct 2, 1984
Est. expirySep 15, 2001(expired)· nominal 20-yr term from priority
Inventors:John A. Mahan
89
PatentIndex Score
28
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a combined telephone inter communication and automatic telephone dialing device, substantially as shown.

Join the waitlist — get patent alerts

Track USD275753S — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.