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经营范围
发明名称
VISUAL DISPLAY OF TIME VARIABLE ELECTRIC INFORMATION
摘要
申请公布号
US3516242(A)
申请公布日期
1970.06.23
申请号
USD3516242
申请日期
1968.02.23
申请人
SPRAGUE ELECTRIC CO.
发明人
KURT LEHOVEC
分类号
G02F1/133;G02F1/1362;G02F1/167;G04G9/06;(IPC1-7):G04C3/00
主分类号
G02F1/133
代理机构
代理人
主权项
地址
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