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发明名称
Ручной аттенюатор для щипковых адаптированных музыкальных инструментов
摘要
申请公布号
SU82994(A1)
申请公布日期
1949.11.30
申请号
SU19490392943
申请日期
1949.03.02
申请人
IVANOV A.A.
发明人
IVANOV A.A.
分类号
G10H1/32
主分类号
G10H1/32
代理机构
代理人
主权项
地址
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