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发明名称
Perforatrice pour trous de grand diamètre
摘要
申请公布号
FR1316589(A)
申请公布日期
1963.02.01
申请号
FR19610882356
申请日期
1961.12.19
申请人
发明人
ZIMMERMANN FRITZ
分类号
E21B1/02;E21B7/02
主分类号
E21B1/02
代理机构
代理人
主权项
地址
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