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发明名称
CUTTER BIT
摘要
申请公布号
JPH08333978(A)
申请公布日期
1996.12.17
申请号
JP19950166847
申请日期
1995.06.07
申请人
TOHO KINZOKU KK;YOKOYAMA KISO KOJI:KK
发明人
AKIYOSHI NAOYOSHI;TSURUTA RYUJI;YOKOYAMA HIROSUKE
分类号
E21B10/56;(IPC1-7):E21B10/56
主分类号
E21B10/56
代理机构
代理人
主权项
地址
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