4. Electric lamp and discharge devices: systems
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Electric discharge lamp and electric discharge lamp drive...

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Periodic switch in the primary circuit of the supply...
Reexamination Certificate

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Electric discharge lamp and thermal switch starter means therefo

Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Filament – electric heater – or resistance in shunt with the...
Patent

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Electric discharge lamp control circuit having a temperature dep

Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Discharge device load
Patent

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Electric discharge lamp control converter circuits

Electric lamp and discharge devices: systems – Surge generator or inductance in the supply circuit – Circuit interrupter in the inductance circuit
Patent

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Electric discharge lamp device

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

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Electric discharge lamp device

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

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Electric discharge lamp device

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

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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 discharge lamp lighting device

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

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Electric discharge lamp lighting unit

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

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Electric discharge lamp with voltage multiplier circuit having a

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

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Electric discharge machine

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

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Electric discharge machining power source unit for electric disc

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

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Electric discharge processing method for an electron tube...

Electric lamp and discharge devices: systems – Cathode ray tube circuits – Cathode-ray deflections circuits
Reexamination Certificate

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Electric discharge tube apparatus

Electric lamp and discharge devices: systems – Discharge device load – Discharge control discharge device load
Patent

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Electric energy control circuit for solar power illumination...

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

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Electric energy saving incandescent lamp socket combination swit

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

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Electric energy saving three-position combination switching devi

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

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Electric energy saving two-position combination switching device

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

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Electric field emission reduction apparatus

Electric lamp and discharge devices: systems – Cathode ray tube circuits – Cathode-ray deflections circuits
Patent

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