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发明名称
小学数学学具盒
摘要
省略仰视图、俯视图、右视图。
申请公布号
CN3208726D
申请公布日期
2001.11.14
申请号
CN01306904.7
申请日期
2001.04.10
申请人
张文瑞
发明人
张文瑞
分类号
03-01-W0231
主分类号
03-01-W0231
代理机构
北京国一贸专利事务所
代理人
王敬智;李桂玲
主权项
地址
100035北京市西城区东冠英胡同13号331室
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