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发明名称
Tabulating machine
摘要
申请公布号
US2255656(A)
申请公布日期
1941.09.09
申请号
US19390309043
申请日期
1939.12.13
申请人
REMINGTON RAND INC.
发明人
DREHER ELMER H.
分类号
主分类号
代理机构
代理人
主权项
地址
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