K. Ernst Brinkmann, Industrieverwaltung

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4910422 Electromagnetic device with low remanenceExpiredJan 29, 88Mar 20, 90[H02K, H01F]
4235311 Mechanism for adjusting the air gap between the components of an electromagnetic brakeExpiredOct 18, 78Nov 25, 80[F16D]
4228874 Electromagnetic brakeExpiredOct 18, 78Oct 21, 80[F16D]

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