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发明名称
SAFETY DEVICE OF BORING BAR
摘要
申请公布号
KR910003888(Y1)
申请公布日期
1991.06.07
申请号
KR19880007763U
申请日期
1988.05.27
申请人
HYUN DAI HEAVY IND.CO.
发明人
KIM IN-SU
分类号
B23B49/00;(IPC1-7):B23B49/00
主分类号
B23B49/00
代理机构
代理人
主权项
地址
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