4. Electrical generator or motor structure
  5. Dynamoelectric
  6. Rotary

E. H. To

Examiner

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AC spindle motor and method of changing rotating speed of same

Electrical generator or motor structure – Dynamoelectric – Rotary
Patent

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Bearing structure

Electrical generator or motor structure – Dynamoelectric – Rotary
Patent

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Charging method for batteries

Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent

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Combined linear-rotary direct drive step motor

Electrical generator or motor structure – Dynamoelectric – Rotary
Patent

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Digital protective circuit breaker

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific quantity comparison means
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