IP Library › Granted Patent US 4,685,122
Granted Patent Utility
US 4,685,122 · App. 06/691,421

Interface circuit for remote control of a PABX

Inventors: Daniel A. Deveson, Anthony J. Bawcutt
Patented Case View Patent ↗
Granted: Aug 4, 1987 Filed: Jan 14, 1985
Inventors
Daniel A. Deveson
Anthony J. Bawcutt
Assignee (at issue)
Mitel Corporation

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Quick Facts
Patent No.
US 4,685,122
App. No.
06/691,421
Filed
1985-01-14
Granted
1987-08-04
Kind
A