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发明名称
Chord engaging device for musical instruments
摘要
申请公布号
US2159677(A)
申请公布日期
1939.05.23
申请号
US19360099197
申请日期
1936.09.03
申请人
MARIA SCHMIDT, GEB. SALM
发明人
SCHMIDT THEODOR
分类号
G10D11/02
主分类号
G10D11/02
代理机构
代理人
主权项
地址
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