Flush valve unit,申请号US19310564340-传众专利搜索

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发明名称	Flush valve unit
摘要
申请公布号	US2074698(A)	申请公布日期	1937.03.23
申请号	US19310564340	申请日期	1931.09.22
申请人	LANGDON JESSE D	发明人	LANGDON JESSE D.
分类号	E03D3/04;E03D3/12	主分类号	E03D3/04
代理机构		代理人
主权项
地址

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