4. Typewriting machines
  5. Key-board or key lever-actuating mechanism
  6. Including means generating a signal for type selecting or...

Yen-Chin Chen

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Keyboard for under water use

Typewriting machines – Key-board or key lever-actuating mechanism – Including means generating a signal for type selecting or...
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Portable computer

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
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Profile ID: LFUS-PAI-P-213533

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