4. Electric lamp and discharge devices: systems
  5. With cathode or cathode heater supply circuit
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DC/AC converter for igniting and supplying a gas 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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Device for driving directly heated cathode of cathode ray tube

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

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Device for replacing a fluorescent lamp in a serially connected

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

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Device for starting and feeding a 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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Digital cathode current control loop

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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Dimming ballast and method

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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Direct current ballastless modulation of gas discharge lamps

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

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Discharge lamp circuit with protected PTC resistor

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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Discharge lamp control circuit

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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Discharge lamp device having a preheating electrode circuit

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

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Discharge lamp fast preheat circuit independent of type of balla

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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Discharge lamp lighting apparatus and method

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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Discharge lamp lighting apparatus including a sintered type oxid

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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Discharge lamp lighting device

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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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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Discharge lamp lighting device and lighting system

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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Discharge lamp operating apparatus and method

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

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Discharge lamp operating circuit

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

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Discharge lamp operation apparatus

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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Discharge lamp starter

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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