IP Library › Granted Patent US 4,044,272
Granted Patent Utility
US 4,044,272 · App. 05/713,995

Fail-safe electronic time delay circuit

Inventor: John O. G. Darrow
Patented Case View Patent ↗
Granted: Aug 23, 1977 Filed: Aug 12, 1976
Inventor
John O. G. Darrow
Assignee (at issue)
Westinghouse Air Brake Co.

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Quick Facts
Patent No.
US 4,044,272
App. No.
05/713,995
Filed
1976-08-12
Granted
1977-08-23
Kind
A