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发明名称
Дифференцирующий счетно-решающий механизм
摘要
申请公布号
SU74638(A1)
申请公布日期
1948.11.30
申请号
SU19460000734
申请日期
1946.11.01
申请人
OSTROVSKIJ I.G.
发明人
OSTROVSKIJ I.G.
分类号
G06G7/18
主分类号
G06G7/18
代理机构
代理人
主权项
地址
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