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发明名称
DRILL DEVICE, DRILL MAIN BODY, AND DRILL BIT
摘要
申请公布号
JPH09254051(A)
申请公布日期
1997.09.30
申请号
JP19960058791
申请日期
1996.03.15
申请人
OSAKA GAS CO LTD
发明人
SOGI TADAYUKI;NAKAMURA RYUICHI
分类号
B25D11/00;(IPC1-7):B25D11/00
主分类号
B25D11/00
代理机构
代理人
主权项
地址
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