Combination two direction check and gate valve,申请号US19580783333-传众专利搜索

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发明名称	Combination two direction check and gate valve
摘要
申请公布号	US3062232(A)	申请公布日期	1962.11.06
申请号	US19580783333	申请日期	1958.12.29
申请人	MCGAY JOHN B	发明人	MCGAY JOHN B.
分类号	F16K15/18	主分类号	F16K15/18
代理机构		代理人
主权项
地址

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