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发明名称
Perfectionnements aux mécanismes pour lire ou analyser les cartes à enregistrements de statistiques
摘要
申请公布号
FR859849(A)
申请公布日期
1940.12.30
申请号
FRD859849
申请日期
1939.09.01
申请人
POWERS ACCOUNTING MACHINES LIMITED
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