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摘要
省略其它视图。
申请公布号
CN3020989D
申请公布日期
1993.09.22
申请号
CN93300222.X
申请日期
1993.02.11
申请人
陈旭东
发明人
陈旭东
分类号
19-01
主分类号
19-01
代理机构
北京市专利事务所
代理人
王德桢
主权项
地址
100041北京市石景山区苹果园一区11栋503室
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