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发明名称
Record sheet for tabulating machines
摘要
申请公布号
US1772492(A)
申请公布日期
1930.08.12
申请号
US19280294110
申请日期
1928.07.20
申请人
THE TABULATING MACHINE COMPANY
发明人
LAKE CLAIR D.
分类号
G06K19/04
主分类号
G06K19/04
代理机构
代理人
主权项
地址
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