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经营范围
发明名称
Treating sewage
摘要
申请公布号
US2167443(A)
申请公布日期
1939.07.25
申请号
US19340759450
申请日期
1934.12.28
申请人
GUGGENHEIM BROTHERS
发明人
BEVAN JOHN G.
分类号
C02F9/00
主分类号
C02F9/00
代理机构
代理人
主权项
地址
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