发明名称 Methods and Devices for Muting a Harmonica
摘要 The present invention provides methods and devices for attenuating sound emanating from a harmonica when played while practicing or performing by a player. The methods and devices include a sound blocking and reflecting means and, optionally, a sound absorbing means.
申请公布号 US2013276615(A1) 申请公布日期 2013.10.24
申请号 US201313866243 申请日期 2013.04.19
申请人 ANTAKI JAMES F. 发明人 ANTAKI JAMES F.
分类号 G10D7/12 主分类号 G10D7/12
代理机构 代理人
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