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发明名称
REAMING BIT
摘要
申请公布号
JPS6367397(A)
申请公布日期
1988.03.26
申请号
JP19860210783
申请日期
1986.09.09
申请人
TOKYU CONSTR CO LTD
发明人
TAKASU MOTOYUKI;HARA KOICHI;FUKUDA SUMIO
分类号
E21D9/06;E21D9/08;E21D9/087
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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