IP Library › Granted Patent US 4,772,869
Granted Patent Utility
US 4,772,869 · App. 07/147,023

Communication apparatus

Inventors: Nick G. Grammas, Michael T. Callas
Patented Case View Patent ↗
Granted: Sep 20, 1988 Filed: Jan 19, 1988
Inventors
Nick G. Grammas
Michael T. Callas
Assignee (at issue)
Lambda Systems, Inc.

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Quick Facts
Patent No.
US 4,772,869
App. No.
07/147,023
Filed
1988-01-19
Granted
1988-09-20
Kind
A