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发明名称
Statistical card comparing machine
摘要
申请公布号
US2229983(A)
申请公布日期
1941.01.28
申请号
US19390310384
申请日期
1939.12.21
申请人
REMINGTON RAND INC.
发明人
MCDONNELL JOSEPH M.
分类号
主分类号
代理机构
代理人
主权项
地址
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