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发明名称
Machine d'abatage ou de percement de galeries à outils rotatifs agissant par coupe ou par impact
摘要
申请公布号
FR1416257(A)
申请公布日期
1965.10.29
申请号
FR19640997221
申请日期
1964.12.03
申请人
GEWERKSCHAFT EISENHUETTE WESTFALIA
发明人
分类号
E21C31/02;E21D9/10
主分类号
E21C31/02
代理机构
代理人
主权项
地址
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