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发明名称
CHALK CUSTODY BOX FOR BLACKBOARD
摘要
申请公布号
KR960003449(Y1)
申请公布日期
1996.04.24
申请号
KR19930025661U
申请日期
1993.11.30
申请人
KOREA BLACKBOARD & SCHOOL EQUIPMENT CO., LTD.
发明人
JANG, CHANG - HO
分类号
B43L1/04;(IPC1-7):B43L1/04
主分类号
B43L1/04
代理机构
代理人
主权项
地址
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