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经营范围
发明名称
Improvements in electrical musical instruments
摘要
申请公布号
GB379151(A)
申请公布日期
1932.08.25
申请号
GB19310031851
申请日期
1931.11.17
申请人
LUCIEN ROUZET
发明人
分类号
G10H3/03
主分类号
G10H3/03
代理机构
代理人
主权项
地址
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