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发明名称
Inclinomètre photographique notamment pour le prélèvement orienté d'une carotte de forage
摘要
申请公布号
FR1389932(A)
申请公布日期
1965.02.19
申请号
FR19640969909
申请日期
1964.04.06
申请人
UHELNY PRUZKUM NARODNI PODNIK
发明人
分类号
E21B25/16;E21B47/02
主分类号
E21B25/16
代理机构
代理人
主权项
地址
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