4. Electric lamp and discharge devices: systems
  5. With cathode or cathode heater supply circuit
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Ignition control circuit for gas discharge lamps

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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Illumination system and method and means for operating it

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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Indicator device with vacuum fluorescence elements

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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Indirectly heated electrode for gas discharge tube, gas...

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

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Indirectly heated electrode for gas discharge tube, gas...

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

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Indirectly heated electrode for gas discharge tube, gas...

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

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Indirectly heated Wehnelt cathode

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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Inductive stabilization ballast for a 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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Infrared carbon nanotube detector

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

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Instant lighting type fluorescent lamp lighting 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
Patent

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Insulation detection power supply and electronic ballast

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

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Inverter-type microwave oven power supply

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

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