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摘要
1.后视图与主视图对称,省略后视图;2.主视图中园孔为通孔;
申请公布号
CN3315671D
申请公布日期
2003.08.20
申请号
CN02370245.1
申请日期
2002.11.26
申请人
齐永仁
发明人
齐永仁
分类号
20-03
主分类号
20-03
代理机构
代理人
主权项
地址
100045北京市西城区白云观南里5号楼3--12号
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