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经营范围
发明名称
Nano gold and silver contain a keyboard instruments
摘要
申请公布号
KR200411315(Y1)
申请公布日期
2006.03.13
申请号
KR20050034969U
申请日期
2005.12.12
申请人
发明人
分类号
G10C3/12
主分类号
G10C3/12
代理机构
代理人
主权项
地址
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