Self-cleaning valve,申请号US19490082650-传众专利搜索

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发明名称	Self-cleaning valve
摘要
申请公布号	US2615465(A)	申请公布日期	1952.10.28
申请号	US19490082650	申请日期	1949.03.21
申请人	ERWIN WOODWARD	发明人	WOODWARD ERWIN
分类号	F16K29/00	主分类号	F16K29/00
代理机构		代理人
主权项
地址

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