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发明名称
Electric adder-subtractor devices
摘要
申请公布号
US2808205(A)
申请公布日期
1957.10.01
申请号
US19510258202
申请日期
1951.11.26
申请人
SOCIETE D'ELECTRONIQUE ET D'AUTOMATISME
发明人
RAYMOND FRANCOIS HENRI;DUSSINE ROGER ROBERT
分类号
G06F7/50;G06F7/504
主分类号
G06F7/50
代理机构
代理人
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地址
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