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公开(公告)号:US06933428B1
公开(公告)日:2005-08-23
申请号:US10049638
申请日:2000-08-09
摘要: Acoustic devices, particularly musical instruments, having a soundboard formed from expanded polycarbonate, methods of manufacture of same, and the use of specific soundboards in the manufacture of acoustic devices.
摘要翻译: 具有由扩展聚碳酸酯形成的音板,其制造方法以及在制造声学装置中使用特定音板的声学装置,特别是乐器。