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Priority to JP16467482UpriorityCriticalpatent/JPS5969052U/ja
Priority to GB08326843Aprioritypatent/GB2132715B/en
Priority to US06/541,732prioritypatent/US4552414A/en
Priority to DE19833339223prioritypatent/DE3339223A1/de
Publication of JPS5969052UpublicationCriticalpatent/JPS5969052U/ja
Application grantedgrantedCritical
Publication of JPH0137329Y2publicationCriticalpatent/JPH0137329Y2/ja