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发明名称
Устройство для автоматической подачи предупредительных сигналов
摘要
申请公布号
SU42441(A1)
申请公布日期
1935.03.31
申请号
SU19340150335
申请日期
1934.07.03
申请人
SHEVERDYAEV L.V.
发明人
SHEVERDYAEV L.V.
分类号
G04C21/30
主分类号
G04C21/30
代理机构
代理人
主权项
地址
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