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发明名称
Perfectionnements apportés aux machines à calculer
摘要
申请公布号
FR827583(A)
申请公布日期
1938.04.28
申请号
FRD827583
申请日期
1937.10.07
申请人
POWERS ACCOUNTING MACHINES LIMITED
发明人
分类号
主分类号
代理机构
代理人
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