4. Electricity: motive power systems
  5. Induction motor systems
  6. Primary circuit control

John E. Durkee

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Control circuit for two speed motors

Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent

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Control circuit for two speed motors

Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent

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Electronic chime

Communications: electrical – Audible indication – Ultrasonic pest control
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Enhanced performance for DC motor drive switching

Electricity: motive power systems – Motor-reversing – Periodic- or intermittent-reversing
Reexamination Certificate

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Motor control circuit

Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent

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Profile ID: LFUS-PAI-P-978884

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