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发明名称
Perforatrice au rocher à jambe d'avance pivotante
摘要
申请公布号
FR1259185(A)
申请公布日期
1961.04.21
申请号
FR19600828923
申请日期
1960.06.02
申请人
JOY MANUFACTURING COMPANY
发明人
分类号
E21B19/087
主分类号
E21B19/087
代理机构
代理人
主权项
地址
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