Method and apparatus for treating sewage,申请号US19390309049-传众专利搜索

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发明名称	Method and apparatus for treating sewage
摘要
申请公布号	US2391494(A)	申请公布日期	1945.12.25
申请号	US19390309049	申请日期	1939.12.13
申请人	THE AMERICAN WELL WORKS	发明人	WALKER JAMES D.
分类号	C02F3/04;C02F3/12	主分类号	C02F3/04
代理机构		代理人
主权项
地址

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