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发明名称
Improvements in devices for automatically comparing numbers in statistical machines
摘要
申请公布号
GB619144(A)
申请公布日期
1949.03.04
申请号
GB19460023448
申请日期
1946.08.07
申请人
COMPAGNIE INDUSTRIELLE DE MACHINES AUTOMATIQUES DE COMPTABILITE
发明人
分类号
主分类号
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