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发明名称
Прибор для умножения чисел
摘要
申请公布号
SU14305(A1)
申请公布日期
1930.03.31
申请号
SU19290042670
申请日期
1929.03.14
申请人
STEDLETSKIJ V.V.
发明人
STEDLETSKIJ V.V.
分类号
G06G1/04;G06G3/04
主分类号
G06G1/04
代理机构
代理人
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地址
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