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发明名称
Electronic counter
摘要
申请公布号
US2644111(A)
申请公布日期
1953.06.30
申请号
US19510259856
申请日期
1951.12.04
申请人
THE NATIONAL CASH REGISTER COMPANY
发明人
DESCH JOSEPH R.
分类号
H03K21/02
主分类号
H03K21/02
代理机构
代理人
主权项
地址
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