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发明名称
PROJECTON LEAD WRITING MATERIALS WHICH IS EXTENED
摘要
申请公布号
KR20060027458(A)
申请公布日期
2006.03.28
申请号
KR20040076205
申请日期
2004.09.23
申请人
CHOI, HYO SEUNG
发明人
CHOI, HYO SEUNG
分类号
B43K3/04
主分类号
B43K3/04
代理机构
代理人
主权项
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