METHOD OF AND APPARATUS FOR MANUFACTURING A BORE-HOLE BROADENER,申请号PL19870269769-传众专利搜索

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发明名称	METHOD OF AND APPARATUS FOR MANUFACTURING A BORE-HOLE BROADENER
摘要
申请公布号	PL154762(B1)	申请公布日期	1991.09.30
申请号	PL19870269769	申请日期	1987.12.29
申请人		发明人
分类号	B22D25/00;B23P;B23P17/00;(IPC1-7):B23P17/00	主分类号	B22D25/00
代理机构		代理人
主权项
地址

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