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发明名称
TAETNINGSMANSCHETT FOER BRUNNSHAOL
摘要
申请公布号
FI792186(A)
申请公布日期
1980.03.16
申请号
FI19790002186
申请日期
1979.07.12
申请人
RP ROERPRODUKTER AB
发明人
FORSSELL BROR INGVAR
分类号
E21B33/127;F16J15/46;(IPC1-7):E03B/
主分类号
E21B33/127
代理机构
代理人
主权项
地址
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