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Priority to JP1982183864UpriorityCriticalpatent/JPS5986337U/ja
Priority to DE3343018Aprioritypatent/DE3343018C2/de
Priority to US06/555,679prioritypatent/US4500794A/en
Publication of JPS5986337UpublicationCriticalpatent/JPS5986337U/ja
Application grantedgrantedCritical
Publication of JPS632588Y2publicationCriticalpatent/JPS632588Y2/ja