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发明名称
DIAMOND BIT AND MANUFACTURE THEREOF
摘要
申请公布号
JPH0913863(A)
申请公布日期
1997.01.14
申请号
JP19950162305
申请日期
1995.06.28
申请人
TONE CORP
发明人
SATO TOSHIHIKO
分类号
E21B10/46;(IPC1-7):E21B10/46
主分类号
E21B10/46
代理机构
代理人
主权项
地址
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