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经营范围
发明名称
Well Screen Having a Slurry Flow Path
摘要
申请公布号
CA2122106(A1)
申请公布日期
1994.10.31
申请号
CA19942122106
申请日期
1994.04.25
申请人
NAGAOKA, TADAYOSHI;SPARLIN, DERRY D.;ASHTON, JEFFERSON P.;NAGAOKA KK
发明人
NAGAOKA, TADAYOSHI;SPARLIN, DERRY D.;ASHTON, JEFFERSON P.
分类号
B07B1/00;E03B3/18;E21B43/04;E21B43/08;(IPC1-7):E21B43/08
主分类号
B07B1/00
代理机构
代理人
主权项
地址
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