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发明名称
BLACKBOARD BRUCH
摘要
申请公布号
KR850000532(Y1)
申请公布日期
1985.04.03
申请号
KR19830004837U
申请日期
1983.06.02
申请人
KANG, JUN-YONG
发明人
KANG, JUN-YONG
分类号
B43L21/00;(IPC1-7):B43L21/00
主分类号
B43L21/00
代理机构
代理人
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地址
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