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发明名称
Photographic material and process for making an azo dye bleachout image
摘要
申请公布号
US2681856(A)
申请公布日期
1954.06.22
申请号
US19490085476
申请日期
1949.04.04
申请人
GASPAR
发明人
GASPAR BELA;DREYFUSS PAUL DANIEL
分类号
G03C7/29
主分类号
G03C7/29
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代理人
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