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经营范围
发明名称
CHANGEABLE SIGN
摘要
申请公布号
GB1598695(A)
申请公布日期
1981.09.23
申请号
GB19770010960
申请日期
1978.03.13
申请人
SPACESAVER SIGNS LTD
发明人
分类号
G09F7/22;(IPC1-7):G09F7/22
主分类号
G09F7/22
代理机构
代理人
主权项
地址
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