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发明名称
DRILL AND CUTTING PART THEREOF
摘要
申请公布号
JPH10328918(A)
申请公布日期
1998.12.15
申请号
JP19970138725
申请日期
1997.05.28
申请人
NGK SPARK PLUG CO LTD
发明人
OZU ISAMU;HIBI TATSUYA
分类号
B23B51/00;(IPC1-7):B23B51/00
主分类号
B23B51/00
代理机构
代理人
主权项
地址
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