Valve for cellar drains,申请号US19280307814-传众专利搜索

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发明名称	Valve for cellar drains
摘要
申请公布号	US1762190(A)	申请公布日期	1930.06.10
申请号	US19280307814	申请日期	1928.09.24
申请人	CHARLES NOE;HENRY KREISS	发明人	NOE CHARLES;KREISS HENRY
分类号	E03F5/042	主分类号	E03F5/042
代理机构		代理人
主权项
地址

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