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

Robert R. Propp

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Customer identification terminal

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

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Method and system for encrypting input from a touch screen

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
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Profile ID: LFUS-PAI-P-1256273

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