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经营范围
发明名称
PIPE STRING DISCONNECTOR
摘要
申请公布号
SU945362(A1)
申请公布日期
1982.07.23
申请号
SU19802928303
申请日期
1980.05.16
申请人
VNII BUROVOJ TEKHNIKI
发明人
GRACHEV VIKTOR V,SU;KRUGLOV VASILIJ D,SU;KHLEBNIKOV NIKOLAJ M,SU;VELIKOSELSKIJ MARK A,SU;VOROZHBITOV MARAT I,SU
分类号
E21B23/00;(IPC1-7):E21B23/00
主分类号
E21B23/00
代理机构
代理人
主权项
地址
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