BALL VALVE HAVING PROGRESSIVE ENGAGEMENT OF BALL AND YIELDABLE SEAT,申请号CAD863164-传众专利搜索

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发明名称	BALL VALVE HAVING PROGRESSIVE ENGAGEMENT OF BALL AND YIELDABLE SEAT
摘要
申请公布号	CA863164(A)	申请公布日期	1971.02.09
申请号	CAD863164	申请日期
申请人	HILLS-MCCANNA COMPANY	发明人	WERNER K. PRIESE
分类号		主分类号
代理机构		代理人
主权项
地址

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