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经营范围
发明名称
PREFABRICATED PIPE FOR TRENCHLESS LAYING OF PIPES
摘要
申请公布号
SU926302(A1)
申请公布日期
1982.05.07
申请号
SU19762328421
申请日期
1976.02.11
申请人
KARAVAEV NIKOLAJ P,SU
发明人
KARAVAEV NIKOLAJ P,SU
分类号
E21D11/08;(IPC1-7):E21D11/08
主分类号
E21D11/08
代理机构
代理人
主权项
地址
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