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经营范围
发明名称
Multi-layer well screen
摘要
申请公布号
USRE31604(E)
申请公布日期
1984.06.19
申请号
US19760753049
申请日期
1976.12.22
申请人
发明人
分类号
B01D29/00;B01D29/44;B01D29/48;B01D39/10;E21B43/08
主分类号
B01D29/00
代理机构
代理人
主权项
地址
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