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发明名称
Revolution coupling for fast running calculating machines
摘要
申请公布号
US2942709(A)
申请公布日期
1960.06.28
申请号
US19560579860
申请日期
1956.04.23
申请人
WALTHER BUROMASCHINEN GESELLSCHAFT M. B. H.
发明人
GELLING HELMUT
分类号
G06C23/06
主分类号
G06C23/06
代理机构
代理人
主权项
地址
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