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Priority to JP2547382UpriorityCriticalpatent/JPS58128279U/ja
Priority to US06/370,047prioritypatent/US4502247A/en
Priority to DE3220431Aprioritypatent/DE3220431A1/de
Publication of JPS58128279UpublicationCriticalpatent/JPS58128279U/ja
Application grantedgrantedCritical
Publication of JPS6332861Y2publicationCriticalpatent/JPS6332861Y2/ja