IP Library › Granted Patent US 4,661,974
Granted Patent Utility
US 4,661,974 · App. 06/600,148

Automatic route selection of a private telephone network path on the basis of a public telephone network number

Inventors: Bruce M. Bales, Steven London, Nancy K. Schmidt
Patented Case View Patent ↗
Granted: Apr 28, 1987 Filed: Apr 13, 1984
Inventors
Bruce M. Bales
Steven London
Nancy K. Schmidt
Assignees (at issue)
AT&T CORP.
AT&T Information Systems Inc.

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Quick Facts
Patent No.
US 4,661,974
App. No.
06/600,148
Filed
1984-04-13
Granted
1987-04-28
Kind
A