Valve,申请号US19590806358-传众专利搜索

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发明名称	Valve
摘要
申请公布号	US3077329(A)	申请公布日期	1963.02.12
申请号	US19590806358	申请日期	1959.04.14
申请人	WILSON SUPPLY COMPANY	发明人	JOHNSTON RUFUS B.
分类号	E21B43/12;F04B9/10;F15B11/15;F16K31/122	主分类号	E21B43/12
代理机构		代理人
主权项
地址

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