US1070648A
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Control system for induction-motors.
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US1124189A
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Motor-control system.
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US1135870A
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Motor-starter.
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US982913A
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Apparatus for controlling electric motors.
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US965676A
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Motor-controller.
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US965674A
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Controlling means for electric motors.
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US965675A
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Motor-starter.
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US965673A
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Controller for electric motors.
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US965672A
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Apparatus for controlling electric motors.
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US1008000A
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Rheostat.
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US965671A
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Reversing-switch.
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US965670A
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Means for stopping electric motors.
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US891722A
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Starter for electric motors.
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US891720A
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Motor-controlling device.
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US891721A
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Starter for electric motors.
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US965649A
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Starter for electric motors.
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US900035A
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Electric-motor starter.
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