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信封(3)
摘要
省略其他视图。
申请公布号
CN3019073D
申请公布日期
1993.06.02
申请号
CN92306591.1
申请日期
1992.09.29
申请人
周迥
发明人
周迥
分类号
19-01
主分类号
19-01
代理机构
北京科龙专利事务所
代理人
张怡诺
主权项
地址
010010内蒙古自治区呼和浩特市光明路力达科技开发研究所
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