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发明名称
Устройство для автоматической подачи бурового инструмента при вращательном бурении
摘要
申请公布号
SU40913(A1)
申请公布日期
1935.01.31
申请号
SU19340141014
申请日期
1934.01.24
申请人
KULIKOVSKIJ L.F.;SKVORTSOV M.M.
发明人
KULIKOVSKIJ L.F.;SKVORTSOV M.M.
分类号
E21B19/08;E21B44/02
主分类号
E21B19/08
代理机构
代理人
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地址
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