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Priority to JP1813178UpriorityCriticalpatent/JPS628117Y2/ja
Publication of JPS53117158UpublicationCriticalpatent/JPS53117158U/ja
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Publication of JPS628117Y2publicationCriticalpatent/JPS628117Y2/ja
Automatic fan control (AFC) unit of low cost and durable construction and related progress for improving the efficiency of existing air conditioning systems