IP Library › Granted Patent US 4,672,663
Granted Patent Utility
US 4,672,663 · App. 06/799,850

Telephone handset detector

Inventor: Richard TOMASI
Patented Case View Patent ↗
Granted: Jun 9, 1987 Filed: Nov 20, 1985
Inventor
Richard TOMASI
Assignee (at issue)
Mitel Corporation

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Quick Facts
Patent No.
US 4,672,663
App. No.
06/799,850
Filed
1985-11-20
Granted
1987-06-09
Kind
A