COMBINATION BALL CHECK AND NEEDLE VALVE,申请号CAD829073-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	CA829073(A)	申请公布日期	1969.12.09
申请号	CAD829073	申请日期
申请人	MCDOWELL-WELLMAN ENGINEERING COMPANY	发明人	DONALD E. ROACH
分类号		主分类号
代理机构		代理人
主权项
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