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发明名称
VERFAHREN ZUR HERSTELLUNG EINES BOHRERROHLINGS.
摘要
申请公布号
DE3673338(D1)
申请公布日期
1990.09.13
申请号
DE19863673338
申请日期
1986.11.03
申请人
DE BEERS INDUSTRIAL DIAMOND DIVISION (PROPRIETARY) LTD., JOHANNESBURG, TRANSVAAL, ZA;TOSHIBA TUNGALOY CO. LTD., KAWASAKI, KANAGAWA, JP
发明人
PHAAL, CORNELIUS, JOHANNESBURG TRANSVAAL, ZA
分类号
B23P15/32;B23B51/00;B23P15/28;(IPC1-7):B23P15/28
主分类号
B23P15/32
代理机构
代理人
主权项
地址
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