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发明名称
投影笔(5009)
摘要
申请公布号
CN301053434D
申请公布日期
2009.11.04
申请号
CN200830215970.9
申请日期
2008.10.24
申请人
曾德文
发明人
曾德文
分类号
19-06
主分类号
19-06
代理机构
广州市南锋专利事务所有限公司
代理人
李永庆
主权项
地址
510040广东省广州市连新路171号信息大楼301室
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