Self-aligning valve seating tool,申请号US19590826723-传众专利搜索

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发明名称	Self-aligning valve seating tool
摘要
申请公布号	US3034269(A)	申请公布日期	1962.05.15
申请号	US19590826723	申请日期	1959.07.13
申请人	BETTENHAUSEN ARNOLD H	发明人	BETTENHAUSEN ARNOLD H.
分类号	B24B15/02	主分类号	B24B15/02
代理机构		代理人
主权项
地址

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