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经营范围
发明名称
Improved process and plant for the treatment of sewage and like sludge
摘要
申请公布号
GB503395(A)
申请公布日期
1939.04.05
申请号
GB19380028308
申请日期
1938.09.29
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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