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Priority to JP4445681UpriorityCriticalpatent/JPS6233828Y2/ja
Priority to US06/360,364prioritypatent/US4474410A/en
Priority to SE8201984Aprioritypatent/SE453112B/sv
Priority to DE19823211580prioritypatent/DE3211580A1/de
Publication of JPS57160392UpublicationCriticalpatent/JPS57160392U/ja
Application grantedgrantedCritical
Publication of JPS6233828Y2publicationCriticalpatent/JPS6233828Y2/ja