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经营范围
发明名称
Improvements in or relating to electric musical instruments
摘要
申请公布号
GB447099(A)
申请公布日期
1936.05.12
申请号
GB19350022556
申请日期
1935.08.09
申请人
JOHN COMPTON
发明人
分类号
G10H1/047
主分类号
G10H1/047
代理机构
代理人
主权项
地址
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