Improvements in and relating to educational music charts

摘要

374,181. Teaching music. LOSSIE, A. L., 327, East Gray Street, Louisville, Kentucky, U.S.A. March 20, 1931, No. 8682. Drawings to Specification. [Class 88 (ii).] A foldable music chart has flexible hinges and is provided with the representation of a staff on which models of the various musical symbols may be disposed. Reference has been directed by the Comptroller to Specifications 15978/88 and 2861/90, [both in Class 88, Music &c.].