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发明名称
Agraffe
摘要
申请公布号
US1838833(A)
申请公布日期
1931.12.29
申请号
US19300464144
申请日期
1930.06.27
申请人
SCHUMANN PIANO COMPANY
发明人
HOLMBERG GUS E.
分类号
G10C3/10
主分类号
G10C3/10
代理机构
代理人
主权项
地址
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