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经营范围
发明名称
Procédé pour la production des films sonores
摘要
申请公布号
FR726962(A)
申请公布日期
1932.06.10
申请号
FRD726962
申请日期
1931.11.27
申请人
发明人
BREUSING KURT
分类号
G03C5/14
主分类号
G03C5/14
代理机构
代理人
主权项
地址
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