Thermally-responsive record material
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United States of America Patent
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-
Sep 16, 1997
Grant Date -
N/A
app pub date -
Dec 3, 1996
filing date -
Dec 3, 1996
priority date (Note) -
Expired
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Abstract
A novel thermally-responsive record material is disclosed comprising a support having provided thereon in substantially contiguous relationship an election donating dye precursor and a compound of the formula ##STR1##
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