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发明名称
Counter and display circuits
摘要
申请公布号
GB877042(A)
申请公布日期
1961.09.13
申请号
GB19590038367
申请日期
1959.11.12
申请人
GENERAL RADIO COMPANY
发明人
分类号
H03K21/00
主分类号
H03K21/00
代理机构
代理人
主权项
地址
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