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发明名称
吸尘黑板擦
摘要
1.省略其它视图。2.擦板部分可由塑料制作。
申请公布号
CN3015243S
申请公布日期
1992.09.16
申请号
CN92303035.2
申请日期
1992.02.27
申请人
李铁成
发明人
李铁成
分类号
19-99
主分类号
19-99
代理机构
辽宁专利事务所
代理人
史旭泰
主权项
地址
113309辽宁省清原满族自治县湾甸子镇大边沟中学
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