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经营范围
发明名称
Perfectionnements aux procédés de gravure en creux
摘要
申请公布号
FR733424(A)
申请公布日期
1932.10.05
申请号
FRD733424
申请日期
1931.06.06
申请人
发明人
FONTAINE LEON
分类号
G03F5/20
主分类号
G03F5/20
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代理人
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