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发明名称
ELECTRONIC CALCULATORS
摘要
申请公布号
GB2019672(A)
申请公布日期
1979.10.31
申请号
GB19790013436
申请日期
1979.04.18
申请人
HEWLETT PACKARD CO
发明人
分类号
G06F15/02;H01H13/702;H05K1/00;H05K1/18;H05K3/32;H05K7/14;(IPC1-7):H05K1/04
主分类号
G06F15/02
代理机构
代理人
主权项
地址
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