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发明名称
A VOCATIONAL TRAINING APPARATUS THAT PROVIDES AUDIO INSTRUCTIONS
摘要
申请公布号
EP1820174(A1)
申请公布日期
2007.08.22
申请号
EP20050852782
申请日期
2005.12.02
申请人
JOHNSONDIVERSEY, INC.
发明人
HUTCHISON, JAY, W.
分类号
G09B21/00;G09B5/06
主分类号
G09B21/00
代理机构
代理人
主权项
地址
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