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发明名称
Способ использования фотоэлемента в аппаратуре звукового кино
摘要
申请公布号
SU75027(A1)
申请公布日期
1948.11.30
申请号
SU19480378151
申请日期
1948.04.29
申请人
KOLOMIETS B.T.
发明人
KOLOMIETS B.T.
分类号
G03B31/00
主分类号
G03B31/00
代理机构
代理人
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