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Personal identification system

  • US 4,528,442 A
  • Filed: 05/25/1984
  • Issued: 07/09/1985
  • Est. Priority Date: 12/23/1981
  • Status: Expired due to Term
First Claim
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1. A personal identification system comprising a card information store unit for writing therein questions and answers in a card itself or a card information store file separately provided during card input, display means for displaying the contents of questions written in said card information store unit, input means for entering the answers to a question displayed, and control means, said control means being capable of comparing an answer entered for the question displayed by said display means to an answer stored in said card information store unit, capable of making the use of said card effective upon coincidence of said answers with the each other.

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