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发明名称
TECLADO OPTICO DE MATRIZ E PROCESSO DE OPERACAO DO MESMO
摘要
申请公布号
BR7901789(A)
申请公布日期
1979.11.20
申请号
BR19790001789
申请日期
1979.03.23
申请人
IBM CORP
发明人
DAHL J
分类号
G06F3/02;H03K17/969;(IPC1-7):G06F3/02;G06C7/02
主分类号
G06F3/02
代理机构
代理人
主权项
地址
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