Swing-type check valve,申请号US19620190175-传众专利搜索

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发明名称	Swing-type check valve
摘要
申请公布号	US3144876(A)	申请公布日期	1964.08.18
申请号	US19620190175	申请日期	1962.04.25
申请人	HALLIBURTON COMPANY	发明人	FRYE JAMES A.
分类号	F16K15/03	主分类号	F16K15/03
代理机构		代理人
主权项
地址

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