4. Recording, communication, or information retrieval equipment
  5. Video or audio transmission, recording or playback equipment
  6. Telephone equipment

Robert Liu

Inventor

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Flash type optic pen

Illumination – With implement or hand held holder therefor – Pen or pencil
Reexamination Certificate

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Keyboard and stand therefor

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent

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Photo-pen with the function of displaying a phone calling...

Coating implements with material supply – Combined
Reexamination Certificate

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Tape dispenser

Office supplies; artists and teachers materials – Office equipment not elsewhere specified – For gluing – sealing – etc.
Design Patent

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Profile ID: LFUS-PAI-P-524655

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