Grinding wheel truing apparatus,申请号US19440564441-传众专利搜索

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发明名称	Grinding wheel truing apparatus
摘要
申请公布号	US2393937(A)	申请公布日期	1946.01.29
申请号	US19440564441	申请日期	1944.11.21
申请人	NORTON COMPANY	发明人	SILVEN HERBERT A.
分类号	B24B53/02	主分类号	B24B53/02
代理机构		代理人
主权项
地址

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