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经营范围
发明名称
Improvements in or relating to electrical musical instruments
摘要
申请公布号
GB412279(A)
申请公布日期
1934.06.21
申请号
GB19340010255
申请日期
1932.09.21
申请人
OSKAR VIERLING
发明人
分类号
G10H3/20
主分类号
G10H3/20
代理机构
代理人
主权项
地址
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