Relief valve utilizing back pressure,申请号US19610123022-传众专利搜索

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发明名称	Relief valve utilizing back pressure
摘要
申请公布号	US3122064(A)	申请公布日期	1964.02.25
申请号	US19610123022	申请日期	1961.07.10
申请人	THE OILGEAR COMPANY	发明人	DOUGLAS JAMES K.
分类号	F15B13/04;F16K17/10	主分类号	F15B13/04
代理机构		代理人
主权项
地址

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