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经营范围
发明名称
BORING DEVICE
摘要
申请公布号
JPH02180513(A)
申请公布日期
1990.07.13
申请号
JP19880333928
申请日期
1988.12.30
申请人
YAMAHA CORP
发明人
ITO NAOYUKI
分类号
B23B39/16
主分类号
B23B39/16
代理机构
代理人
主权项
地址
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