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Priority to JP3326974ApriorityCriticalpatent/JPS5610224B2/ja
Priority to DE19757509160prioritypatent/DE7509160U/de
Publication of JPS50127062ApublicationCriticalpatent/JPS50127062A/ja
Publication of JPS5610224B2publicationCriticalpatent/JPS5610224B2/ja
