Tool for lapping valve seats,申请号US19340736279-传众专利搜索

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发明名称	Tool for lapping valve seats
摘要
申请公布号	US2029753(A)	申请公布日期	1936.02.04
申请号	US19340736279	申请日期	1934.07.21
申请人	ZIM MANUFACTURING COMPANY	发明人	BERKMAN HERBERT A.
分类号	B24B15/00	主分类号	B24B15/00
代理机构		代理人
主权项
地址

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