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

Yen-Chun Wu

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External keyboard for personal digital assistant

Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate

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Keyboard

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

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Method for inputting commands in a keypad

Computer graphics processing and selective visual display system – Display peripheral interface input device – Including keyboard
Reexamination Certificate

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Method of transmitting key code of hot key from number pad

Coded data generation or conversion – Bodily actuated code generator – Including keyboard or keypad
Reexamination Certificate

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Profile ID: LFUS-PAI-P-525857

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