4. Typewriting machines
  5. Key-board or key lever-actuating mechanism
  6. Key-board having multiple-character, multiple-movement keys

Jay A. Crews

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Carrier

Tools and hardware – Other tools and implements
Patent

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Ergonomically designed keyboard

Typewriting machines – Key-board or key lever-actuating mechanism – Key-board having multiple-character – multiple-movement keys
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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Profile ID: LFUS-PAI-P-417100

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