Improvements in machines for grinding valve seats,申请号GB19380012840-传众专利搜索

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发明名称	Improvements in machines for grinding valve seats
摘要
申请公布号	GB496635(A)	申请公布日期	1938.12.02
申请号	GB19380012840	申请日期	1938.04.29
申请人	SOCIETE PARISIENNE D'OUTILAGE ELECTRIQUE	发明人
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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