4. Pumps
  5. Motor driven
  6. Electric or magnetic motor

Katsuaki Usui

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Evacuating unit with reduced diameter exhaust duct

Pumps – Condition responsive control of pump drive motor – Plural pumps having separate drive motors – supply sources,...
Reexamination Certificate

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Magnetic levitation conveyor apparatus

Conveyors: power-driven – Conveyor section – Load propelled as the reactive means in a linear motor or...
Patent

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Method of operating vacuum pump

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator
Patent

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Multishaft electric motor and positive-displacement pump combine

Electrical generator or motor structure – Dynamoelectric – Rotary
Patent

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Multishaft electric motor and positive-displacement pump...

Pumps – Motor driven – Electric or magnetic motor
Reexamination Certificate

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Profile ID: LFUS-PAI-P-160828

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