Joyner Engineers and Trainers, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5029188 Apparatus for monitoring operation cycles of an electrically actuated deviceExpiredNov 03, 89Jul 02, 91[G07C]
5006301 Method and apparatus for control rod drop monitoringExpiredMar 22, 89Apr 09, 91[G21C]
4797670 Redundant signal selector systemExpiredJan 30, 87Jan 10, 89[G08B, G05B]

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