IP Library › Granted Patent US 4,385,379
Granted Patent Utility
US 4,385,379 · App. 06/289,954

Digital concentrator for use with a digital telephone office

Inventors: Michael J. Kelly, Robert L. Lindsay, Alex W. Kobylar, David J. Stelte
Patented Case View Patent ↗
Granted: May 24, 1983 Filed: Aug 5, 1981
Inventors
Michael J. Kelly
Robert L. Lindsay
Alex W. Kobylar
David J. Stelte
Assignee (at issue)
GTE Automatic Electric Labs Inc.

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Quick Facts
Patent No.
US 4,385,379
App. No.
06/289,954
Filed
1981-08-05
Granted
1983-05-24
Kind
A