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US2819440A
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Induction regulator control for a. c. commutator machines
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GB752355A
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Improvements in rotating electrical amplifying generators
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GB742919A
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Induction regulator control for a.c. commutator machines
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GB733867A
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Improvements concerned with the speed control of induction motors
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GB735938A
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Improvements in control systems for electric motors
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GB727730A
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Improvements in variable speed electric drives embodying a frequency converter or frequency changer
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US2640178A
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Speed and voltage control of stator fed alternating current commutator motors and frequency converters
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GB684415A
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Improvements concerned with the speed and voltage control of stator fed a.c. commutator motors and frequency converters
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US2489982A
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Compensating means or arrangements for alternating current commutator machines
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US2480054A
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Control system for stator fed alternating-current commutator motors
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US2481786A
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Control system for alternating current commutator motors
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GB622068A
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Improvements relating to the control of a.c. commutator motors
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GB592777A
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Improvements connected with the control and operation of a.c. commutator motors, particularly for hoisting and like purposes
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GB588204A
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Improvements connected with variable speed electric drives
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GB590379A
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Means for the protection of electric motors against overloading
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GB586907A
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Improvements connected with electric motor control systems and means
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GB583556A
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Improvements connected with the operation of a.c. commutator machines
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GB581871A
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Improvements connected with the secondary windings of induction motors
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GB581850A
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Improvements connected with electrical regulating systems and apparatus
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GB561658A
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Improvements connected with the construction of rotors for electric induction motors
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