Rotary plug valve,申请号US19290361752-传众专利搜索

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发明名称	Rotary plug valve
摘要
申请公布号	US1843251(A)	申请公布日期	1932.02.02
申请号	US19290361752	申请日期	1929.05.09
申请人	SWENDEMAN JOSEPH E	发明人	SWENDEMAN JOSEPH E.
分类号	F16K5/16	主分类号	F16K5/16
代理机构		代理人
主权项
地址

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