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发明名称
Electronic counter
摘要
申请公布号
US2521350(A)
申请公布日期
1950.09.05
申请号
US19470787663
申请日期
1947.11.24
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
DICKINSON ARTHUR H.
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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