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Apparatus for measuring the frequency of a pulse-generator and n

Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent

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Apparatus for removing torque ripples in a direct current motor

Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent

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Apparatus for removing torque ripples in direct-current motors

Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent

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Apparatus for reproducing disc record

Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent

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Apparatus for synchronization of a motor

Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent

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Apparatus for varying the speed of DC motors

Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent

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Arrangement and method for operating a magnetically suspended, e

Electricity: motive power systems – Braking – Automatic and/or with time-delay means
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Arrangement for controlling the speed of a DC motor

Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent

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Arrangement for controlling the speed of a motor

Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent

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Automatic field control for direct current shunt motor

Electricity: motive power systems – Braking – Automatic and/or with time-delay means
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Automatic gain control apparatus for a motor servo system

Electricity: motive power systems – Braking – Automatic and/or with time-delay means
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