画法几何教具,申请号CN91300273.9-传众专利搜索

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发明名称	画法几何教具
摘要
申请公布号	CN3011400S	申请公布日期	1991.11.13
申请号	CN91300273.9	申请日期	1991.02.06
申请人	浙江工学院	发明人	朱可久
分类号	19-07	主分类号	19-07
代理机构	浙江省专利事务所	代理人	袁木棋
主权项
地址	310014浙江省杭州市朝晖六区

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