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发明名称
Electro-acoustic keyboard stringed instruments
摘要
申请公布号
GB436207(A)
申请公布日期
1935.10.01
申请号
GB19340006558
申请日期
1934.03.01
申请人
FRANZ AUGUST GERHARD FOERSTER
发明人
分类号
G10H3/18
主分类号
G10H3/18
代理机构
代理人
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