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Seikosha KK
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Seikosha KK
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Priority to JP50090953ApriorityCriticalpatent/JPS5214824A/en
Publication of JPS5214824ApublicationCriticalpatent/JPS5214824A/en
PURPOSE: To obtain low frequency AC with a desired wave form by inverting DC into high frequency AC once and then by letting it pass through a switching circuit.