Underdrain for filters and the like,申请号US19420435472-传众专利搜索

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法人/股东/高管

发明名称	Underdrain for filters and the like
摘要
申请公布号	US2387101(A)	申请公布日期	1945.10.16
申请号	US19420435472	申请日期	1942.03.20
申请人	THE AMERICAN WELL WORKS	发明人	WALKER JAMES D.
分类号	C02F3/10	主分类号	C02F3/10
代理机构		代理人
主权项
地址

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