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发明名称
Регистратор перемещения бурового инструмента
摘要
申请公布号
SU150805(A1)
申请公布日期
1961.11.30
申请号
SU19610744324
申请日期
1961.09.09
申请人
发明人
FEDOTOV P.I.
分类号
E21B44/00
主分类号
E21B44/00
代理机构
代理人
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