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

Tsang Chiu Ming

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Electrical display device with individual display members

Card – picture – or sign exhibiting – Illuminated sign – Lamp box
Reexamination Certificate

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Electrical display device with individual display members

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

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Profile ID: LFUS-PAI-P-2874296

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