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发明名称
Resonating means for banjos
摘要
申请公布号
US1783244(A)
申请公布日期
1930.12.02
申请号
US19290377375
申请日期
1929.07.11
申请人
LANGE WILLIAM L
发明人
LANGE WILLIAM L.
分类号
G10D1/10
主分类号
G10D1/10
代理机构
代理人
主权项
地址
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