4. Typewriting machines
  5. Key-board or key lever-actuating mechanism

Kuo-An Chen

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Keyboard

Recording – communication – or information retrieval equipment – Computer – data processor equipment – Peripheral equipment
Patent

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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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Keyboard

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

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Multimedia keyboard device having game rods on each end

Typewriting machines – Key-board or key lever-actuating mechanism
Patent

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Profile ID: LFUS-PAI-P-914821

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