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发明名称
Process for measuring the inclination of boring holes in the earth
摘要
申请公布号
GB370801(A)
申请公布日期
1932.04.14
申请号
GB19310024353
申请日期
1931.08.29
申请人
MINES DOMANIALES DE POTASSE D'ALSACE
发明人
分类号
E21B47/022
主分类号
E21B47/022
代理机构
代理人
主权项
地址
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