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发明名称
MASK FOR ARC WELDING
摘要
申请公布号
KR910007687(Y1)
申请公布日期
1991.09.30
申请号
KR19890009020U
申请日期
1989.09.20
申请人
LEE BANG-JUN
发明人
LEE BANG-JUN
分类号
A61F9/06;(IPC1-7):A61F9/06
主分类号
A61F9/06
代理机构
代理人
主权项
地址
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