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发明名称
Устройство для уничтожения мешающих звуков звуковом кинопроекторе
摘要
申请公布号
SU31649(A1)
申请公布日期
1933.08.31
申请号
SU19310100304
申请日期
1931.12.28
申请人
SHOR M.E.
发明人
SHOR M.E.
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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