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发明名称
Procédé et appareillage pour le percement de roches ou de matériaux analogues
摘要
申请公布号
FR1092658(A)
申请公布日期
1955.04.26
申请号
FRD1092658
申请日期
1953.11.25
申请人
AKTIEBOLAGET ATLAS DIESEL
发明人
分类号
E21B19/084
主分类号
E21B19/084
代理机构
代理人
主权项
地址
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