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发明名称
Machine à graver électrolytique
摘要
申请公布号
FR678758(A)
申请公布日期
1930.04.04
申请号
FRD678758
申请日期
1929.07.19
申请人
发明人
JOHNSTONE GEORGE FLORENCE
分类号
C25F7/00
主分类号
C25F7/00
代理机构
代理人
主权项
地址
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