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发明名称
Electrical musical instrument
摘要
申请公布号
US2225299(A)
申请公布日期
1940.12.17
申请号
US19380237002
申请日期
1938.10.26
申请人
RADIO CORPORATION
发明人
DEMUTH GALAN W.
分类号
G10H3/18
主分类号
G10H3/18
代理机构
代理人
主权项
地址
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