4. Electric lamp and discharge devices: systems
  5. Pulsating or a.c. supply
  6. Transformer in the supply circuit

Ming D A

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Field emission display, method for measuring vacuum degree...

Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Reexamination Certificate

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Lamp-lighting apparatus

Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Transformer in the supply circuit
Reexamination Certificate

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