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Hitachi Ltd
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Hitachi Ltd
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Application filed by Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP5539776ApriorityCriticalpatent/JPS52138968A/en
Publication of JPS52138968ApublicationCriticalpatent/JPS52138968A/en
PURPOSE: To improve damping effect with a little quantity of filler by filling the center of the upper and lower surface of a vibrating table with filler, thus reducing flexural distortion at the time of natural vibration of the table.