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Nippon Gakki Co Ltd
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Nippon Gakki Co Ltd
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Filing date
Publication date
Application filed by Nippon Gakki Co LtdfiledCriticalNippon Gakki Co Ltd
Priority to JP11256276ApriorityCriticalpatent/JPS5337407A/en
Publication of JPS5337407ApublicationCriticalpatent/JPS5337407A/en
PURPOSE: To obtain well balanced vibration for all compass ranging from low to high pitch sound, by applying paints on the low, middlw and high pitch portions of the reverberative board.