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经营范围
发明名称
Electronic impulse counting circuits
摘要
申请公布号
GB658370(A)
申请公布日期
1951.10.10
申请号
GB19490020375
申请日期
1949.08.05
申请人
THE NATIONAL CASH REGISTER COMPANY
发明人
分类号
H03K23/82
主分类号
H03K23/82
代理机构
代理人
主权项
地址
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