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Priority to JP1978153502UpriorityCriticalpatent/JPS5824406Y2/ja
Priority to GB7937379Aprioritypatent/GB2035706B/en
Priority to DE2944583Aprioritypatent/DE2944583C2/de
Priority to NLAANVRAGE7908236,Aprioritypatent/NL178826C/xx
Publication of JPS5571512UpublicationCriticalpatent/JPS5571512U/ja
Application grantedgrantedCritical
Publication of JPS5824406Y2publicationCriticalpatent/JPS5824406Y2/ja
Priority to US06/675,468prioritypatent/US4549158A/en