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发明名称
BORING DEVICE
摘要
申请公布号
JPH0192012(A)
申请公布日期
1989.04.11
申请号
JP19870249431
申请日期
1987.10.01
申请人
NEC CORP
发明人
YOSHIDA KIMITOKU
分类号
B26D7/20;B23B35/00;B23B41/00;B26D5/08;B26F1/02
主分类号
B26D7/20
代理机构
代理人
主权项
地址
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