4. Electric lamp and discharge devices: systems
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Lamp containing fixed reverse phase switching power supply...

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition
Reexamination Certificate

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Lamp containing phase-control power controller with analog...

Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation
Reexamination Certificate

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Lamp containing power controller having current limited RMS...

Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation
Reexamination Certificate

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Lamp containing power controller having current limited RMS...

Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation
Reexamination Certificate

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Lamp containing pulse width modulated voltage conversion...

Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Plural circuit elements
Reexamination Certificate

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Lamp containing soft-start power supply

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition
Reexamination Certificate

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Lamp containing voltage conversion circuit including...

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition
Reexamination Certificate

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Lamp control

Electric lamp and discharge devices: systems – Plural control stations
Patent

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Lamp control circuit

Electric lamp and discharge devices: systems – Regulation of the control current and/or potential applied... – Plural load device systems
Patent

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Lamp control circuit

Electric lamp and discharge devices: systems – With radiant energy sensitive control means – Load device irradiating the radiant energy responsive device
Patent

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Lamp control circuit

Electric lamp and discharge devices: systems – Discharge device and/or rectifier in the supply circuit – Flashers
Patent

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Lamp control circuit having a brightness condition controller ha

Electric lamp and discharge devices: systems – Automatic substitution of the power supply
Patent

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Lamp control circuit having a V-I converter with slopes of diffe

Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation
Patent

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Lamp control circuit using heater/thermistor time delay

Electric lamp and discharge devices: systems – With radiant energy sensitive control means – Electric switch controlled by the radiant energy responsive...
Patent

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Lamp control circuit with selectable color signals

Electric lamp and discharge devices: systems – Discharge device and/or rectifier in the supply circuit – Flashers
Reexamination Certificate

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Lamp control device

Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Electric switch inside evacuated or gas filled envelope
Patent

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Lamp control responsive to rapid increases in ambient light

Electric lamp and discharge devices: systems – With radiant energy sensitive control means – Electric switch controlled by the radiant energy responsive...
Patent

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Lamp control system

Electric lamp and discharge devices: systems – With load device temperature modifier
Reexamination Certificate

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Lamp control system

Electric lamp and discharge devices: systems – Current and/or voltage regulation – Plural load device regulation
Reexamination Certificate

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Lamp controller with lamp status detection and safety circuitry

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Periodic switch cut-out
Patent

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