4. Electric lamp and discharge devices
  5. Cathode ray tube
  6. Shadow mask, support or shield

Lap Man Yam

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Cold cathode field emitter flat screen display

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

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Display device with improved grid structure

Electric lamp and discharge devices – Cathode ray tube – Shadow mask – support or shield
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2454451

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