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经营范围
发明名称
Perfectionnements apportés aux machines à grainer les planches lithographiques
摘要
申请公布号
FR715519(A)
申请公布日期
1931.12.04
申请号
FRD715519
申请日期
1931.04.16
申请人
发明人
BECKETT CHARLES ARTHUR
分类号
B41N3/04
主分类号
B41N3/04
代理机构
代理人
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地址
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