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发明名称
BALLPEN WITH DEVICE FOR HOLDING BOOKS OPEN
摘要
申请公布号
KR890001876(Y1)
申请公布日期
1989.04.08
申请号
KR19860003198U
申请日期
1986.03.17
申请人
HWANG DUCK-HYUNG
发明人
HWANG DUCK-HYUNG
分类号
B43K29/00;(IPC1-7):B43K29/00
主分类号
B43K29/00
代理机构
代理人
主权项
地址
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