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发明名称
DRILLING STRING OF TOOLS
摘要
申请公布号
SU613078(A1)
申请公布日期
1978.06.30
申请号
SU19762389784
申请日期
1976.07.22
申请人
LYSAK LEONID P,SU;ZHUKOV BORIS P,SU;PSHENICHNYJ PAVEL V,SU
发明人
LYSAK LEONID P,SU;ZHUKOV BORIS P,SU;PSHENICHNYJ PAVEL V,SU
分类号
E21B25/00;E21B10/02;E21B21/00;(IPC1-7):E21B25/00;E21B9/20
主分类号
E21B25/00
代理机构
代理人
主权项
地址
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