IP Library › Granted Patent US 4,469,016
Granted Patent Utility
US 4,469,016 · App. 06/343,625

Spring safety device

Inventors: Ronald G. Butler, John R. Lehman
Patented Case View Patent ↗
Granted: Sep 4, 1984 Filed: Jan 28, 1982
Inventors
Ronald G. Butler
John R. Lehman
Assignee (at issue)
International Telephone and Telegraph Corporation

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Quick Facts
Patent No.
US 4,469,016
App. No.
06/343,625
Filed
1982-01-28
Granted
1984-09-04
Kind
A