4. Electric lamp and discharge devices: systems
  5. With cathode or cathode heater supply circuit
  6. Pulsating or a.c. supply to the cathode or heater circuit
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Alternating cathode florescent lamp dimmer

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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Apparatus and method for controlling the filament voltage in...

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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Apparatus and method for starting and controlling a fluorescent

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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Apparatus and method for supplying a regulated current to a...

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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Arrangement including a gas and/or vapor discharge lamp

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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