IP Library › Granted Patent US 4,396,910
Granted Patent Utility
US 4,396,910 · App. 06/146,011

Coded security switch

Inventors: Robert B. Enemark, Stephen Marchetti
Patented Case View Patent ↗
Granted: Aug 2, 1983 Filed: May 2, 1980
Inventors
Robert B. Enemark
Stephen Marchetti
Assignee (at issue)
American District Telegraph Company

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Quick Facts
Patent No.
US 4,396,910
App. No.
06/146,011
Filed
1980-05-02
Granted
1983-08-02
Kind
A