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Priority to JP1977057818UpriorityCriticalpatent/JPS602580Y2/ja
Priority to DE19787813736prioritypatent/DE7813736U1/de
Publication of JPS53152623UpublicationCriticalpatent/JPS53152623U/ja
Application grantedgrantedCritical
Publication of JPS602580Y2publicationCriticalpatent/JPS602580Y2/ja