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经营范围
发明名称
Musical instrument
摘要
申请公布号
US1748025(A)
申请公布日期
1930.02.18
申请号
US19270238906
申请日期
1927.12.09
申请人
MARX HENRY C
发明人
MARX HENRY C.
分类号
G10D1/12;G10D3/00
主分类号
G10D1/12
代理机构
代理人
主权项
地址
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