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发明名称
Improvements in and relating to electrical musical instruments
摘要
申请公布号
GB364415(A)
申请公布日期
1932.01.07
申请号
GB19310006896
申请日期
1931.03.05
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
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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