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发明名称
信封
摘要
1.省略其他视图。2.根据信封尺寸大小,确定钻孔数量。
申请公布号
CN3018115D
申请公布日期
1993.04.28
申请号
CN92303844.2
申请日期
1992.07.20
申请人
唐凯
发明人
唐凯
分类号
19-01
主分类号
19-01
代理机构
代理人
主权项
地址
422000湖南省邵阳市劳动教养管理所
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