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Priority to JP3654980UpriorityCriticalpatent/JPS6228744Y2/ja
Priority to GB8024979Aprioritypatent/GB2062352B/en
Priority to DE19803029275prioritypatent/DE3029275C2/de
Publication of JPS56139234UpublicationCriticalpatent/JPS56139234U/ja
Priority to GB08327701Aprioritypatent/GB2129615B/en
Application grantedgrantedCritical
Publication of JPS6228744Y2publicationCriticalpatent/JPS6228744Y2/ja