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发明名称
A MEASURING CUP FOR STUDY
摘要
申请公布号
KR200201823(Y1)
申请公布日期
2000.12.01
申请号
KR19980020895U
申请日期
1998.10.30
申请人
YANG, HEE-NAM
发明人
YANG, HEE-NAM
分类号
G09B23/02;(IPC1-7):G09B23/02
主分类号
G09B23/02
代理机构
代理人
主权项
地址
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