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经营范围
发明名称
TEMPERATURE-CHANGING DEVICE OF EARTH SURFACE FOR STUDYING
摘要
申请公布号
KR200170991(Y1)
申请公布日期
2000.03.02
申请号
KR19970027512U
申请日期
1997.10.01
申请人
LEE, JIN-GI
发明人
LEE, JIN-GI
分类号
G09B27/08;G09B29/02;(IPC1-7):G09B29/02
主分类号
G09B27/08
代理机构
代理人
主权项
地址
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