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Card having retroreflective bar codes and a magnetic stripe

  • US 5,237,164 A
  • Filed: 12/04/1991
  • Issued: 08/17/1993
  • Est. Priority Date: 05/12/1989
  • Status: Expired due to Fees
First Claim
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1. A card having retroreflective bar codes comprising:

  • (a) a card substrate;

    (b) a first information recording portion formed of a retroreflective material portion of a predetermined pattern, for reflecting a beam of incident light, as modulated in intensity by the predetermined pattern, to a distance of several meters from the card; and

    (c) a second information recording portion readable locally with respect to the card, the first and second information recording portions being provided on the card substrate.

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