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发明名称
Perfectionnements aux machines comptables et plus particulièrement aux machines à multiplier
摘要
申请公布号
FR830755(A)
申请公布日期
1938.08.09
申请号
FRD830755
申请日期
1937.08.27
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
分类号
G06F7/46
主分类号
G06F7/46
代理机构
代理人
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地址
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