Drain for sewage disposal systems,申请号US19490121077-传众专利搜索

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发明名称	Drain for sewage disposal systems
摘要
申请公布号	US2637170(A)	申请公布日期	1953.05.05
申请号	US19490121077	申请日期	1949.10.13
申请人	BENEDICT LOUIS K	发明人	BENEDICT LOUIS K.
分类号	C02F3/04	主分类号	C02F3/04
代理机构		代理人
主权项
地址

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