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发明名称
Приспособление для опускания противопожарной заслонки в фонаре конденсатора кинопроектора
摘要
申请公布号
SU16160(A1)
申请公布日期
1930.07.31
申请号
SU19290049988
申请日期
1929.06.27
申请人
OSIPOV G.I.
发明人
OSIPOV G.I.
分类号
G03B21/18
主分类号
G03B21/18
代理机构
代理人
主权项
地址
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