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发明名称
Roll of direct positive paper
摘要
申请公布号
US1966404(A)
申请公布日期
1934.07.10
申请号
US19330651127
申请日期
1933.01.11
申请人
JULIAN FLORIAN
发明人
FLORIAN JULIAN
分类号
G03C3/00
主分类号
G03C3/00
代理机构
代理人
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