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发明名称
Прибор для демонстрирования уменьшения давления жидкости на дно в случае перемещения ее вдоль дна
摘要
申请公布号
SU55639(A1)
申请公布日期
1938.11.30
申请号
SU19340155960
申请日期
1934.10.25
申请人
AMOSOV I.N.
发明人
AMOSOV I.N.
分类号
G09B23/12
主分类号
G09B23/12
代理机构
代理人
主权项
地址
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