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发明名称
ELECTRONIC CALCULATING APPARATUS
摘要
申请公布号
GB1579589(A)
申请公布日期
1980.11.19
申请号
GB19770012455
申请日期
1977.03.24
申请人
ELEKTRONIKHANDEL BERLIN VEB
发明人
分类号
G06F15/00;G06F3/02;G06F15/02;H03M7/00;(IPC1-7):G06F7/00
主分类号
G06F15/00
代理机构
代理人
主权项
地址
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