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发明名称
AUTOMATIC KNOCK SYSTEM
摘要
申请公布号
KR20090006375(U)
申请公布日期
2009.06.29
申请号
KR20070020560U
申请日期
2007.12.24
申请人
发明人
分类号
A47K17/00;G09F19/00
主分类号
A47K17/00
代理机构
代理人
主权项
地址
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