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Priority to JP3285680UpriorityCriticalpatent/JPS6338384Y2/ja
Priority to US06/242,427prioritypatent/US4427906A/en
Priority to DE3109455Aprioritypatent/DE3109455C2/de
Publication of JPS56136181UpublicationCriticalpatent/JPS56136181U/ja
Application grantedgrantedCritical
Publication of JPS6338384Y2publicationCriticalpatent/JPS6338384Y2/ja