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发明名称
无尘黑板擦
摘要
本实用新型涉及无尘黑板擦,按国际专利分类表(IPC)属于作业运输部,印刷分部,书写或绘图器具,办公用品小类,书写或绘图用品,书写或绘图辅助用品大类,有吸粉笔灰装置的黑板或石板的清洁装置组技术领域。编号为B43L21/02。它是由海绵块、小风轮、外壳、扶手、按钮、电池盒、电池构成。其特征是可将海绵块擦下的粉尘用小风轮全部吸入。是一种很具有实用价值的无尘黑板擦。
申请公布号
CN2362715Y
申请公布日期
2000.02.09
申请号
CN98248956.0
申请日期
1998.11.09
申请人
刘璐
发明人
刘璐
分类号
B43L21/02
主分类号
B43L21/02
代理机构
代理人
主权项
1.一种无尘黑板擦,它是由海绵块<1>、小风轮<2>、外壳<3>、扶手<4>、按钮<5>、电池盒<6>、电池<7>构成,其特征是外壳<3>中镶嵌有小风轮<2>。
地址
110015辽宁省沈阳市沈河区小南街238号市第82中学
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