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发明名称
Multiple-use writing board
摘要
申请公布号
GB2190045(A)
申请公布日期
1987.11.11
申请号
GB19870010568
申请日期
1987.05.05
申请人
ESTER * SERITTI
发明人
ESTER * SERITTI
分类号
B43L1/06;(IPC1-7):B43L1/00;G09B29/00
主分类号
B43L1/06
代理机构
代理人
主权项
地址
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