Photodevelopable silver halide photosensitive material
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United States of America Patent
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Feb 24, 1981
Grant Date -
N/A
app pub date -
Jul 31, 1979
filing date -
Aug 7, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A photodevelopable silver halide photosensitive material wherein a visible image is formed by a latent image-forming step in which high illumination exposure is effected for a short time and a subsequent light development step in which low illumination exposure is effected, which comprises at least one compound of the formula: ##STR1## wherein R.sub.1 is hydrogen, lower alkyl or a substituted or unsubstituted aryl group and salts thereof.
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