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发明名称
Автоматический регулятор подачи бурового снаряда на забой скважины
摘要
申请公布号
SU130016(A1)
申请公布日期
1960.11.30
申请号
SU19590647769
申请日期
1959.12.18
申请人
VOJSHSHEL V.V.
发明人
VOJSHSHEL V.V.
分类号
E21B44/02;E21B19/084
主分类号
E21B44/02
代理机构
代理人
主权项
地址
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