4. Electricity: motive power systems
  5. Induction motor systems
  6. Braking

Robert R. Boldt

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Bearing and motor temperature monitor

Communications: electrical – Condition responsive indicating system – Specific condition
Patent

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Controller with two modes of braking induction motors

Electricity: motive power systems – Induction motor systems – Braking
Patent

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Moisture tester

Electricity: measuring and testing – Conductor identification or location – Inaccessible
Patent

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Multiple-frequency permittivity tester

Electricity: measuring and testing – Conductor identification or location – Inaccessible
Patent

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Relative motion monitor

Electricity: motive power systems – With signals – meters – recorders or testing devices
Patent

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Profile ID: LFUS-PAI-P-61875

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