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摘要
省略其它视图。
申请公布号
CN3020636D
申请公布日期
1993.09.08
申请号
CN92307783.9
申请日期
1992.11.17
申请人
王锦化
发明人
王锦化
分类号
13-03
主分类号
13-03
代理机构
代理人
主权项
地址
221009江苏省徐州市徐州师范学院科技开发部
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