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发明名称
HAND-POSITIONING DEVICE FOR VIOLINISTS
摘要
申请公布号
US3619470(A)
申请公布日期
1971.11.09
申请号
USD3619470
申请日期
1970.04.03
申请人
GEORGE DEE HARRIS
发明人
GEORGE DEE HARRIS
分类号
G09B15/06;G10D3/18;(IPC1-7):G10D3/18
主分类号
G09B15/06
代理机构
代理人
主权项
地址
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