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Application filedfiledCritical
Priority to JP18127780UpriorityCriticalpatent/JPH026778Y2/ja
Priority to US06/328,691prioritypatent/US4618107A/en
Priority to EP81305860Aprioritypatent/EP0054425B1/en
Priority to DE8181305860Tprioritypatent/DE3172849D1/de
Publication of JPS57102977UpublicationCriticalpatent/JPS57102977U/ja
Application grantedgrantedCritical
Publication of JPH026778Y2publicationCriticalpatent/JPH026778Y2/ja
