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发明名称
井字格纸
摘要
申请公布号
CN3082993D
申请公布日期
1998.08.19
申请号
CN97317648.2
申请日期
1997.09.07
申请人
刘龙生
发明人
刘龙生
分类号
19-01-P0075
主分类号
19-01-P0075
代理机构
代理人
主权项
地址
333000江西省景德镇市太黄家上弄84号
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