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Priority to JP1979147284UpriorityCriticalpatent/JPS6212876Y2/ja
Publication of JPS5663880UpublicationCriticalpatent/JPS5663880U/ja
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Publication of JPS6212876Y2publicationCriticalpatent/JPS6212876Y2/ja
Automatic fan control (AFC) unit of low cost and durable construction and related progress for improving the efficiency of existing air conditioning systems