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发明名称
Musical instrument
摘要
申请公布号
US1798055(A)
申请公布日期
1931.03.24
申请号
US19280317762
申请日期
1928.11.07
申请人
ROY BANKS JOSEPH LE
发明人
BANKS JOSEPH LE ROY
分类号
G10F1/12
主分类号
G10F1/12
代理机构
代理人
主权项
地址
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