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发明名称
Tabulating machine
摘要
申请公布号
US1821046(A)
申请公布日期
1931.09.01
申请号
US19200420128
申请日期
1920.10.28
申请人
THE TABULATING MACHINE COMPANY
发明人
WRIGHT JOHN EDWARD
分类号
G06K15/04
主分类号
G06K15/04
代理机构
代理人
主权项
地址
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