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发明名称
Chord playing attachment for stringed musical instruments
摘要
申请公布号
US2790344(A)
申请公布日期
1957.04.30
申请号
US19540436170
申请日期
1954.06.11
申请人
BRIMHALL RULON W
发明人
BRIMHALL RULON W.
分类号
G10D3/08
主分类号
G10D3/08
代理机构
代理人
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