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发明名称
Устройство для автоматической регулировки бурения
摘要
申请公布号
SU37011(A1)
申请公布日期
1934.06.30
申请号
SU19320119600
申请日期
1932.12.02
申请人
MELIK-TANGIEV Z.I.
发明人
MELIK-TANGIEV Z.I.
分类号
E21B19/08;E21B44/04
主分类号
E21B19/08
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