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发明名称
Process for sinking iiners for bore holes and other similar tubular bodies into the earth
摘要
申请公布号
GB458069(A)
申请公布日期
1936.12.11
申请号
GB19360021628
申请日期
1936.08.05
申请人
PAOLO ALBERTI
发明人
分类号
E21B1/00
主分类号
E21B1/00
代理机构
代理人
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