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发明名称
Changeable information scroll sign.
摘要
申请公布号
EP0487791(B1)
申请公布日期
1995.06.14
申请号
EP19900312806
申请日期
1990.11.26
申请人
EVERBRITE INC
发明人
TRAME, CHARLES E.;HOBACH, MICHAEL W.;KARSTEN, ROBERT A.
分类号
G09F11/00;G09F11/29;G09F11/295;(IPC1-7):G09F11/29
主分类号
G09F11/00
代理机构
代理人
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