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发明名称
DRILLING METHOD BY HAMMER DRILL AND DEVICE THEREFOR
摘要
申请公布号
JPH1034416(A)
申请公布日期
1998.02.10
申请号
JP19960195810
申请日期
1996.07.25
申请人
NIPPON FUASUTEMU KK
发明人
TOMIZAWA HIDEO
分类号
B23B47/34;B23B49/00;(IPC1-7):B23B47/34
主分类号
B23B47/34
代理机构
代理人
主权项
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