METHOD OF SHARPENING TWIST AND SPADE DRILLS AND APPARATUS THEREFOR,申请号PL19850254028-传众专利搜索

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发明名称	METHOD OF SHARPENING TWIST AND SPADE DRILLS AND APPARATUS THEREFOR
摘要
申请公布号	PL149794(B1)	申请公布日期	1990.03.31
申请号	PL19850254028	申请日期	1985.06.17
申请人		发明人
分类号	B24B;B24B3/28;(IPC1-7):B24B3/28	主分类号	B24B
代理机构		代理人
主权项
地址

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