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发明名称
Harp action
摘要
申请公布号
US1775462(A)
申请公布日期
1930.09.09
申请号
US19290337396
申请日期
1929.02.04
申请人
VADE HULL
发明人
HULL VADE
分类号
G10D1/04
主分类号
G10D1/04
代理机构
代理人
主权项
地址
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