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发明名称
Diazotype photoprinting materials
摘要
申请公布号
GB647617(A)
申请公布日期
1950.12.20
申请号
GB19480024271
申请日期
1948.09.15
申请人
GENERAL ANILINE & FILM CORPORATION
发明人
分类号
G03C1/61
主分类号
G03C1/61
代理机构
代理人
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