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发明名称
Приспособление для уменьшения шума в звуковом кино
摘要
申请公布号
SU29988(A1)
申请公布日期
1933.04.30
申请号
SU19320012996
申请日期
1932.07.22
申请人
NIKITIN I.I.
发明人
NIKITIN I.I.
分类号
G03B31/00
主分类号
G03B31/00
代理机构
代理人
主权项
地址
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