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发明名称
活动铅笔(自动退铅芯)
摘要
后视图与主视图对称,省略后视图。
申请公布号
CN3441087D
申请公布日期
2005.04.20
申请号
CN200430082912.5
申请日期
2004.10.12
申请人
吴佩霖
发明人
吴佩霖
分类号
19-06
主分类号
19-06
代理机构
宁波天一专利代理有限公司
代理人
张永泰
主权项
地址
315103 浙江省宁波市鄞州区梅墟新世界名人别墅E4
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