SPRING CHECK VALVE AND TOOL,申请号CAD690427-传众专利搜索

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发明名称	SPRING CHECK VALVE AND TOOL
摘要
申请公布号	CA690427(A)	申请公布日期	1964.07.14
申请号	CAD690427	申请日期
申请人	JOHN E. DUDGEON	发明人	JOHN E. DUDGEON
分类号		主分类号
代理机构		代理人
主权项
地址

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