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经营范围
发明名称
Electronic musical instrument
摘要
申请公布号
US2241027(A)
申请公布日期
1941.05.06
申请号
US19390306942
申请日期
1939.11.30
申请人
RADIO CORPORATION OF AMERICA
发明人
BUMSTEAD RALPH W.
分类号
G10H5/16
主分类号
G10H5/16
代理机构
代理人
主权项
地址
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