IP Library › Granted Patent US 4,670,897
Granted Patent Utility
US 4,670,897 · App. 06/774,061

Circuit testing of telephone grids or the like

Inventors: Donald Parsons, Gerald J. Parsons, Brian D. Greenwald, Elizabeth A. Forsythe
Patented Case View Patent ↗
Granted: Jun 2, 1987 Filed: Sep 9, 1985
Inventors
Donald Parsons
Gerald J. Parsons
Brian D. Greenwald
Elizabeth A. Forsythe
Assignee (at issue)
Communications Test Design, Inc.

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Quick Facts
Patent No.
US 4,670,897
App. No.
06/774,061
Filed
1985-09-09
Granted
1987-06-02
Kind
A