Flush valve system,申请号US19490070709-传众专利搜索

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发明名称	Flush valve system
摘要
申请公布号	US2543438(A)	申请公布日期	1951.02.27
申请号	US19490070709	申请日期	1949.01.13
申请人	COCHRAN FRANCIS R	发明人	COCHRAN FRANCIS R.
分类号	E03D1/012;E03D1/34	主分类号	E03D1/012
代理机构		代理人
主权项
地址

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