Shindengen Kogyo Kabushiki Kaisha

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4907178 Method for detecting a reference angular position of a rotary bodyExpiredMar 14, 88Mar 06, 90[F02P, G01B]
4862338 Ringing choke converter using single switching elementExpiredSep 21, 87Aug 29, 89[H02M]
4827891 Ignition apparatus for preventing unnecessary charging in an internal combustion engineExpiredAug 06, 87May 09, 89[F02P]
4473050 Capacitor charge and discharge type ignition deviceExpiredSep 29, 81Sep 25, 84[F02P]

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