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经营范围
发明名称
Improvements in or relating to indicators for displaying variable information
摘要
申请公布号
GB432447(A)
申请公布日期
1935.07.26
申请号
GB19340007903
申请日期
1934.03.13
申请人
ERICSSON TELEPHONES LIMITED;CHARLES WILFRID WILMAN;CHARLES CARL TRAPP
发明人
分类号
G09F11/26
主分类号
G09F11/26
代理机构
代理人
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