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经营范围
发明名称
Musical instrument
摘要
申请公布号
US1788313(A)
申请公布日期
1931.01.06
申请号
US19290408044
申请日期
1929.11.18
申请人
MANN BRADY M
发明人
MANN BRADY M.
分类号
G10D1/08
主分类号
G10D1/08
代理机构
代理人
主权项
地址
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