IP Library › Granted Patent US 4,639,719
Granted Patent Utility
US 4,639,719 · App. 06/710,315

Apparatus for monitoring circuit integrity

Inventors: Thomas W. Pappano, David O. Brown
Patented Case View Patent ↗
Granted: Jan 27, 1987 Filed: Mar 11, 1985
Inventors
Thomas W. Pappano
David O. Brown
Assignee (at issue)
Federal Signal Corporation

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Quick Facts
Patent No.
US 4,639,719
App. No.
06/710,315
Filed
1985-03-11
Granted
1987-01-27
Kind
A