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Priority to JP11517384UpriorityCriticalpatent/JPS6131542U/ja
Publication of JPS6131542UpublicationCriticalpatent/JPS6131542U/ja
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Publication of JPS6331810Y2publicationCriticalpatent/JPS6331810Y2/ja
A top-blow molding machine of the type always opening the upper portion of a core box assembly and a molding sand feeding mechanism of using an exhausting action of the blow head