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发明名称
Perfectionnements apportés au traitement des eaux en boues résiduelles
摘要
申请公布号
FR781644(A)
申请公布日期
1935.05.18
申请号
FRD781644
申请日期
1934.11.21
申请人
THE DORR COMPANY INC.
发明人
分类号
C02F11/12
主分类号
C02F11/12
代理机构
代理人
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