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发明名称
DOUBLE BALLPEN
摘要
申请公布号
KR910002706(Y1)
申请公布日期
1991.04.26
申请号
KR19880018222U
申请日期
1988.11.03
申请人
KIM SONG-KEUN
发明人
KIM SONG-KEUN
分类号
B43K27/12;(IPC1-7):B43K27/12
主分类号
B43K27/12
代理机构
代理人
主权项
地址
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