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发明名称
Verfahren zur Veredelung des Tones von Streichinstrumenten
摘要
申请公布号
DE573079(C)
申请公布日期
1933.03.27
申请号
DE1931H127348D
申请日期
1931.06.16
申请人
DR. WILHELM HOLTSCHMIDT
发明人
分类号
G10D3/02
主分类号
G10D3/02
代理机构
代理人
主权项
地址
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