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System, method and program product for credit card transaction validation

  • US 20060278697A1
  • Filed: 06/02/2006
  • Published: 12/14/2006
  • Est. Priority Date: 06/13/2005
  • Status: Active Grant
First Claim
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1. A device for generating a transaction validation number comprising:

  • a user interface comprising a display and a keypad, said user interface for entering a transaction amount and a PIN, and for displaying said validation number;

    a clock for generating a time code;

    a processor, said processor generating said validation number based on said time code, said transaction amount, and said PIN.

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