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发明名称
IMPROVEMENTS IN OR RELATING TO MATRIX DISPLAY DEVICES
摘要
申请公布号
GB1300144(A)
申请公布日期
1972.12.20
申请号
GB19700005147
申请日期
1970.02.03
申请人
UNIVERSAL TELEWRITERS (PTY.) LTD.
发明人
HASSAN PADDY ABDEL SALAM
分类号
G08B5/40;G09F9/37
主分类号
G08B5/40
代理机构
代理人
主权项
地址
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