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Integrated retroreflective electronic display

  • US 5,621,571 A
  • Filed: 02/14/1994
  • Issued: 04/15/1997
  • Est. Priority Date: 02/14/1994
  • Status: Expired due to Term
First Claim
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1. A retroreflective apparatus for both visual and electromagnetic data communication, said apparatus comprising:

  • retroreflective means for retroreflecting incident light, said retroreflecting means having visual information thereon;

    antenna means for electromagnetic communication; and

    coupling means for allowing coupling to said antenna means;

    wherein said retroreflective apparatus is substantially rigid.

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