4. Electric lamp and discharge devices: systems
  5. With cathode or cathode heater supply circuit
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Electric arrangement for starting and supplying a low-pressure d

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Pulsating or a.c. supply to the cathode or heater circuit
Patent

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Electric arrangement including at least one gas and/or vapor dis

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Pulsating or a.c. supply to the cathode or heater circuit
Patent

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Electric device for starting and feeding a metal vapor discharge

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Pulsating or a.c. supply to the cathode or heater circuit
Patent

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Electric device for starting and supplying a gas-and/or vapor di

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Plural cathodes or heaters in the load device
Patent

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Electric device provided with a gas and/or vapor discharge lamp

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Discharge device and/or rectifier in the cathode or heater...
Patent

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Electric discharge lamp lighting device

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Discharge device and/or rectifier in the cathode or heater...
Patent

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Electric lighting systems

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Pulsating or a.c. supply to the cathode or heater circuit
Patent

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Electrical apparatus and method for reducing power consumption o

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Plural load device systems
Patent

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Electron beam generator for an electron gun

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit
Patent

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Electron current regulator for an electron discharge device

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Automatic cut-out or voltage regulator in the cathode or...
Patent

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Electron emission device

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Automatic cut-out or voltage regulator in the cathode or...
Patent

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Electron emitter assembly

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Plural cathodes or heaters in the load device
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Electron tube device and electron tube

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Pulsating or a.c. supply to the cathode or heater circuit
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Electronic ballast

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit
Reexamination Certificate

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Electronic ballast

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Pulsating or a.c. supply to the cathode or heater circuit
Reexamination Certificate

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Electronic ballast cathode heating circuit

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Pulsating or a.c. supply to the cathode or heater circuit
Reexamination Certificate

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Electronic ballast circuit for a fluorescent light

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit
Patent

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Electronic ballast circuit for fluorescent lamps which have a hi

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Pulsating or a.c. supply to the cathode or heater circuit
Patent

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Electronic ballast device for fluorescent lamps

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Delayed application of the discharge potential
Patent

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Electronic ballast for tungsten lamp tubes

Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Discharge device and/or rectifier in the cathode or heater...
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