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发明名称
Mechanical player for stringed instruments
摘要
申请公布号
US1946827(A)
申请公布日期
1934.02.13
申请号
US19330685127
申请日期
1933.08.14
申请人
BACH EDWARD W
发明人
BACH EDWARD W.
分类号
G10F1/18
主分类号
G10F1/18
代理机构
代理人
主权项
地址
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