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Priority to JP2778480UpriorityCriticalpatent/JPS6219781Y2/ja
Priority to GB8041111Aprioritypatent/GB2067363A/en
Priority to DE19803048828prioritypatent/DE3048828A1/de
Priority to IT8068997Aprioritypatent/IT1129494B/it
Publication of JPS56129459UpublicationCriticalpatent/JPS56129459U/ja
Application grantedgrantedCritical
Publication of JPS6219781Y2publicationCriticalpatent/JPS6219781Y2/ja