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发明名称
Indicating means for card punching machines
摘要
申请公布号
US1883985(A)
申请公布日期
1932.10.25
申请号
US19270199566
申请日期
1927.06.17
申请人
REMINGTON RAND INC.
发明人
LASKER WILLIAM W.
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主分类号
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