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Priority to JP6682581UpriorityCriticalpatent/JPH0124668Y2/ja
Priority to DE19823217205prioritypatent/DE3217205A1/de
Priority to US06/376,033prioritypatent/US4504916A/en
Priority to GB08213457Aprioritypatent/GB2102391B/en
Publication of JPS57179767UpublicationCriticalpatent/JPS57179767U/ja
Application grantedgrantedCritical
Publication of JPH0124668Y2publicationCriticalpatent/JPH0124668Y2/ja