发明名称 Portable keyboard
摘要 An arrangement for facilitating the installation of an action in a piano body. The arrangement includes at least one adjusting medium being adapted to facilitate the positioning of the action with respect to a piano body, wherein the at least one adjusting medium is associated solely with the action.
申请公布号 US2003106412(A1) 申请公布日期 2003.06.12
申请号 US20020218022 申请日期 2002.08.12
申请人 STEINBUHLER DAVID 发明人 STEINBUHLER DAVID
分类号 G10C1/04;G10C3/16;G10C3/22;(IPC1-7):G10C3/12 主分类号 G10C1/04
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