Combination ball check and needle valve,申请号US19650497336-传众专利搜索

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发明名称	Combination ball check and needle valve
摘要
申请公布号	US3395725(A)	申请公布日期	1968.08.06
申请号	US19650497336	申请日期	1965.10.18
申请人	MC-DOWELL-WELLMAN ENGINEERING CO.	发明人	ROACH DONALD E.
分类号	F16K15/03;F16K15/04	主分类号	F16K15/03
代理机构		代理人
主权项
地址

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