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发明名称
Combined submerged orifice and weir control for percolating filters
摘要
申请公布号
GB391199(A)
申请公布日期
1933.04.19
申请号
GB19310023310
申请日期
1931.08.19
申请人
EDWARD STANLEY HODGSON;HENRY VERNON ST. CLAIR SHAW
发明人
分类号
C02F1/00
主分类号
C02F1/00
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代理人
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