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Priority to JP15860881UpriorityCriticalpatent/JPS5862397U/ja
Publication of JPS5862397UpublicationCriticalpatent/JPS5862397U/ja
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Publication of JPS6215835Y2publicationCriticalpatent/JPS6215835Y2/ja
Solid body capable of vibration and/or reflection in devices and installations for generating, radiating, distributing or transmitting sound vibrations