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Priority to JP1977161655UpriorityCriticalpatent/JPS6114018Y2/ja
Priority to DE2851047Aprioritypatent/DE2851047C2/de
Priority to US05/963,946prioritypatent/US4225221A/en
Publication of JPS5486425UpublicationCriticalpatent/JPS5486425U/ja
Application grantedgrantedCritical
Publication of JPS6114018Y2publicationCriticalpatent/JPS6114018Y2/ja