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经营范围
发明名称
Dispositif d'avance pour perforatrices
摘要
申请公布号
FR1026076(A)
申请公布日期
1953.04.23
申请号
FRD1026076
申请日期
1950.10.17
申请人
发明人
LICHTBLAU WILHELM
分类号
E21B19/089
主分类号
E21B19/089
代理机构
代理人
主权项
地址
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