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发明名称
Improvements in or relating to indicating or display devices
摘要
申请公布号
GB356161(A)
申请公布日期
1931.09.02
申请号
GB19300017036
申请日期
1930.06.02
申请人
AUTOMATIC TELEPHONE MANUFACTURING COMPANY LIMITED;ROBERT NORMAN SAXBY
发明人
分类号
G09F11/06
主分类号
G09F11/06
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