4. Communications: electrical
  5. Visual indication
  6. Using light emitting diodes

Nai-Wen Chang

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Alcohol and tobacco age identification electronic perpetual cale

Horology: time measuring systems or devices – With calendar indicator – Electro-optical
Patent

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Garage door position indicator

Communications: electrical – Visual indication – Using light emitting diodes
Patent

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Heat-dissipating structure of disc drive

Dynamic optical information storage or retrieval – Particular cabinet structure for optical media – Tray or drawer loading or ejecting
Reexamination Certificate

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Profile ID: LFUS-PAI-P-94105

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