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发明名称
Apparatus for the production of music
摘要
申请公布号
US2165707(A)
申请公布日期
1939.07.11
申请号
US19370138562
申请日期
1937.04.23
申请人
MIESSNER INVENTIONS, INC.
发明人
JACOBS CHARLES T.
分类号
G10H5/10
主分类号
G10H5/10
代理机构
代理人
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