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发明名称
DEVICE FOR DRILLING HOLES
摘要
申请公布号
SU1460289(A1)
申请公布日期
1989.02.23
申请号
SU19874263171
申请日期
1987.05.22
申请人
V PROEKTNO-IZYSKATELSKIJ NII "GIDROPROEKT" IM.S.YA.ZHUKA
发明人
SKVORTSOV VSEVOLOD F,SU;VODOPYAN VLADIMIR K,SU;SNITKO VALENTIN S,SU;DRUZHIN MIKHAIL P,SU;SELIVANOV NIKOLAJ G,SU;SHABALIN NIKOLAJ I,SU
分类号
E21D1/06
主分类号
E21D1/06
代理机构
代理人
主权项
地址
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