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发明名称
Verfahren zur Verbesserung der akustischen Eigenschaften von Streichinstrumenten
摘要
申请公布号
AT189490(B)
申请公布日期
1957.04.10
申请号
ATD189490
申请日期
1954.04.29
申请人
DR. FRANZ MENTER
发明人
DR. FRANZ MENTER
分类号
主分类号
代理机构
代理人
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