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发明名称
Perfectionnements apportés aux machines à imprimer en creux, notamment en héliogravure
摘要
申请公布号
FR1004521(A)
申请公布日期
1952.03.31
申请号
FRD1004521
申请日期
1947.05.05
申请人
发明人
SCHWERIN KURT;GRADNAUER ERWIN
分类号
B41F27/02
主分类号
B41F27/02
代理机构
代理人
主权项
地址
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