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发明名称
Ударное устройство для бурения скважин
摘要
申请公布号
SU120474(A1)
申请公布日期
1958.11.30
申请号
SU19540575256
申请日期
1954.12.03
申请人
BARKAN D.D.;VOSKRESENSKIJ F.F.;VYSKREBTSOV G.D.;SLAVSKIJ V.M.;TAGIEV E.I.
发明人
BARKAN D.D.;VOSKRESENSKIJ F.F.;VYSKREBTSOV G.D.;SLAVSKIJ V.M.;TAGIEV E.I.
分类号
E21B4/14
主分类号
E21B4/14
代理机构
代理人
主权项
地址
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