Electrochromic device
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United States of America Patent
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Mar 25, 2003
Issued Date -
N/A
app pub date -
Jun 19, 2000
filing date -
Dec 19, 1997
priority date (Note) -
Expired
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Abstract
An electrochromic element composed of an ionically conductive substance layer containing a specified electrochromic substance sandwiched between two electrically conductive substrates at least one of which is transparent.
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