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Semiconductor device control apparatus and method

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Reexamination Certificate

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Separately excited DC motor with boost and de-boost control

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Field control – or field and armature control – by digital or...
Patent

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Servo circuit for magnetic disk apparatus

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Patent

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Servo control device for a VTR

Electricity: motor control systems – Specific control circuit element or device – Computer or microprocessor
Patent

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Sewing machine of a sewing machine by wireless controller

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Patent

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Speed control apparatus for electric motor

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Patent

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Speed control apparatus for motor

Electricity: motor control systems – Open loop speed control system for dc motor with commutator – Analog armature control
Patent

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Speed control apparatus for movable equipment

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Patent

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Speed control apparatus of motor

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Field control – or field and armature control – by analog...
Reexamination Certificate

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Speed control circuit for a DC motor

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Patent

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Speed control circuit of a direct current motor

Electricity: motor control systems – Open loop speed control system for dc motor with commutator – Analog armature control
Reexamination Certificate

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Speed control device for an electric sewing machine

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Patent

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Speed control device for an electronic sewing machine

Electricity: motor control systems – Open loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Patent

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Speed control device for d-c motors

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Patent

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Speed control device for DC motor

Electricity: motor control systems – Open loop speed control system for dc motor with commutator – Analog armature control
Patent

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Speed control device for DC motor

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

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Speed control for brushless DC motors

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Armature control by digital or combined analog and digital...
Patent

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Speed control for controlling the speed of a DC motor

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

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Speed control mechanism for a power tool

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

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Speed control of a d.c. motor

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Field control – or field and armature control – by analog...
Reexamination Certificate

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