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Priority to JP11417281UpriorityCriticalpatent/JPS5823052U/ja
Priority to US06/403,345prioritypatent/US4591935A/en
Priority to DE3228541Aprioritypatent/DE3228541C2/de
Priority to KR2019820006088Uprioritypatent/KR880003724Y1/ko
Publication of JPS5823052UpublicationCriticalpatent/JPS5823052U/ja
Application grantedgrantedCritical
Publication of JPS6232367Y2publicationCriticalpatent/JPS6232367Y2/ja