4. Electric lamp and discharge devices: systems
  5. With cathode or cathode heater supply circuit
  6. Plural load device systems
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Parallel lamps with instant program start electronic ballast

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

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Power saving fluorescent lamp substitute

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

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Preheat current control circuit based upon the number of lamps d

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

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Soft start of lamp filament

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

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Starter assembly for a gas discharge lamp

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

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Symmetrical load power reduction device for lighting fixtures

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

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System for energizing and dimming gas discharge lamps

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

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Three lamp ballast

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

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Traveling wave tube heating coil power supply with varying frequ

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

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Voltage limited ballast for gaseous discharge devices

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

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Wattage reducing device for fluorescent fixtures

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

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