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发明名称
Приспособление к киносъемочному и проекционному аппаратам для записи и воспроизведения звука
摘要
申请公布号
SU13460(A1)
申请公布日期
1930.03.31
申请号
SUD13460
申请日期
1928.08.14
申请人
GANDLER D.L.
发明人
GANDLER D.L.
分类号
G03B31/02
主分类号
G03B31/02
代理机构
代理人
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地址
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