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经营范围
发明名称
Sourdine pour instruments à cordes, spécialement pour violons
摘要
申请公布号
FR708363(A)
申请公布日期
1931.07.23
申请号
FRD708363
申请日期
1930.12.22
申请人
发明人
HALLER ERNST
分类号
G10D3/04
主分类号
G10D3/04
代理机构
代理人
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