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发明名称
A communication aid
摘要
申请公布号
GB2484307(A)
申请公布日期
2012.04.11
申请号
GB20100016779
申请日期
2010.10.06
申请人
JOHN ALBERT KOPELCIW
发明人
JOHN ALBERT KOPELCIW
分类号
G09B21/00
主分类号
G09B21/00
代理机构
代理人
主权项
地址
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