ELECTROCHROMIC (EC) MIRROR WHICH RAPIDLY CHANGES REFLECTIVITY

  • US 3,807,832 A
  • Filed: 11/09/1972
  • Issued: 04/30/1974
  • Est. Priority Date: 11/09/1972
  • Status: Expired due to Term
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First Claim
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2. The device of claim 1 wherein said persistent electrochromic material is tungsten oxide.

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