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发明名称
Прибор для определения времени экспозиции при фотографировании или при копировании
摘要
申请公布号
SU18039(A1)
申请公布日期
1930.09.30
申请号
SU19290057262
申请日期
1929.10.29
申请人
MOLCHANOV L.M.
发明人
MOLCHANOV L.M.
分类号
G01J1/46;G03B7/00
主分类号
G01J1/46
代理机构
代理人
主权项
地址
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