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发明名称
Improvements in or relating to musical instruments
摘要
申请公布号
GB381676(A)
申请公布日期
1932.10.13
申请号
GB19310024344
申请日期
1931.08.29
申请人
HEINRICH KOENEMANN
发明人
分类号
G10H3/08
主分类号
G10H3/08
代理机构
代理人
主权项
地址
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