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Automatic electrical motor speed control

Electricity: motive power systems – Series motors – With plural – diverse or diversely connected or controlled...
Patent

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Circuit arrangement for regulating the rpm of a series motor

Electricity: motive power systems – Series motors
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Circuit for automatic operation of a series brake upon power los

Electricity: motive power systems – Series motors
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Control circuits for electrically driven vehicles

Electricity: motive power systems – Series motors – Field circuit control
Patent

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D.C. control circuits

Electricity: motive power systems – Series motors
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Drive circuit for a DC motor

Electricity: motive power systems – Series motors – Field circuit control
Patent

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Drive system for domestic appliances

Electricity: motive power systems – Series motors
Reexamination Certificate

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Electric drive system and method

Electricity: motive power systems – Series motors – Field circuit control
Patent

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Field weakening system for pulse-controlled three-terminal d.c.

Electricity: motive power systems – Series motors – Field circuit control
Patent

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Four quadrant control of series motors

Electricity: motive power systems – Series motors – Convertible for nonseries motor operation
Patent

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Method and apparatus for quiet fan speed control

Electricity: motive power systems – Series motors – Control by motor circuit impedance
Reexamination Certificate

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Motor speed control

Electricity: motive power systems – Series motors – Field circuit control
Patent

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Rheostatic control system for a DC motor

Electricity: motive power systems – Series motors – Field circuit control
Patent

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Series (or compound) motor and control circuit for adjusting eff

Electricity: motive power systems – Series motors – Field circuit control
Patent

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Series or compound motor control circuit having dual series wind

Electricity: motive power systems – Series motors – With plural – diverse or diversely connected or controlled...
Patent

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Series wound motor

Electricity: motive power systems – Series motors
Reexamination Certificate

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Series-wound electric motor and control system for governing the

Electricity: motive power systems – Series motors – Control by motor circuit impedance
Patent

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Series-wound motor with a braking element

Electricity: motive power systems – Series motors
Patent

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Solid state series motor control

Electricity: motive power systems – Series motors – Field circuit control
Reexamination Certificate

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Speed control and braking circuit for a series connected DC mach

Electricity: motive power systems – Series motors – Control by motor circuit impedance
Patent

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