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发明名称
米字板
摘要
该板为薄型透明材料制成,省略其它视图。
申请公布号
CN3014419S
申请公布日期
1992.07.15
申请号
CN91302589.5
申请日期
1991.11.15
申请人
张翔
发明人
张翔
分类号
19-06
主分类号
19-06
代理机构
西北大学专利事务所
代理人
张建申
主权项
地址
710069陕西省西安市西北大学总务处伙管科
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