Grinding attachment for twist drills,申请号US19440545964-传众专利搜索

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法人/股东/高管

发明名称	Grinding attachment for twist drills
摘要
申请公布号	US2394839(A)	申请公布日期	1946.02.12
申请号	US19440545964	申请日期	1944.07.21
申请人	HARLAN BOWMAN CHARLES	发明人	BOWMAN CHARLES HARLAN
分类号	B24B3/24	主分类号	B24B3/24
代理机构		代理人
主权项
地址

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