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发明名称
Pitch changing attachment for stringed musical instruments
摘要
申请公布号
US2781685(A)
申请公布日期
1957.02.19
申请号
US19560599743
申请日期
1956.07.24
申请人
WHITE ROBERT C;MARTIN ULYAN A
发明人
WHITE ROBERT C.;MARTIN ULYAN A.
分类号
G10D3/14
主分类号
G10D3/14
代理机构
代理人
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地址
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