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发明名称
LIGHTED DISPLAY UNITS
摘要
申请公布号
US3573814(A)
申请公布日期
1971.04.06
申请号
USD3573814
申请日期
1968.06.07
申请人
SYMBOLIC DISPLAYS INC.
发明人
WILLIAM J. LANG
分类号
G09F9/307;(IPC1-7):G09F9/00
主分类号
G09F9/307
代理机构
代理人
主权项
地址
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