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经营范围
发明名称
Stringed musical instrument
摘要
申请公布号
US1752180(A)
申请公布日期
1930.03.25
申请号
US19280305211
申请日期
1928.09.11
申请人
CURTIS JOHNSON LOUIS
发明人
JOHNSON LOUIS CURTIS
分类号
G10D1/00
主分类号
G10D1/00
代理机构
代理人
主权项
地址
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