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经营范围
发明名称
多用垫板
摘要
省略其它视图。
申请公布号
CN3017762D
申请公布日期
1993.04.14
申请号
CN92303057.3
申请日期
1992.03.27
申请人
杨洪军
发明人
杨洪军
分类号
19-06
主分类号
19-06
代理机构
朝阳市专利事务所
代理人
卜海慧
主权项
地址
122400辽宁省建平县教师进修学校
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