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发明名称
多用折叠尺
摘要
省略其它视图。
申请公布号
CN3011399S
申请公布日期
1991.11.13
申请号
CN91301262.9
申请日期
1991.06.07
申请人
段超
发明人
段超
分类号
19-06-R0302
主分类号
19-06-R0302
代理机构
北京市科技专利事务所
代理人
王德桢
主权项
地址
100029北京市朝阳区惠新里东大街10号中国金融学院电教中心
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