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发明名称
Экран для получения проектируемых изображений
摘要
申请公布号
SU41719(A1)
申请公布日期
1935.02.28
申请号
SU19340153907
申请日期
1934.09.13
申请人
FELDMAN L.V.
发明人
FELDMAN L.V.
分类号
G03B21/56
主分类号
G03B21/56
代理机构
代理人
主权项
地址
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