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Priority claimed from JP31408588Aexternal-prioritypatent/JPH02159700A/en
Priority claimed from JP31408488Aexternal-prioritypatent/JPH02159699A/en
Application filed by Matsushita Elctric Ind Co LtdfiledCriticalMatsushita Elctric Ind Co Ltd
Priority to SG137993ApriorityCriticalpatent/SG137993G/en
Publication of SG137993GpublicationCriticalpatent/SG137993G/en