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发明名称	练本封皮
摘要
申请公布号	CN3058547D	申请公布日期	1997.05.28
申请号	CN96310181.1	申请日期	1996.05.08
申请人	郭乃兴	发明人	郭乃兴 ; 杜维平
分类号	19-04-E0107	主分类号	19-04-E0107
代理机构		代理人
主权项
地址	111000辽宁省辽阳市中华大街80-1号楼91号信箱

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