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Priority to JP18710386UpriorityCriticalpatent/JPH0230057Y2/ja
Priority to US07/125,146prioritypatent/US4778080A/en
Priority to DE3741204Aprioritypatent/DE3741204C2/de
Priority to DE8716084Uprioritypatent/DE8716084U1/de
Publication of JPS6390475UpublicationCriticalpatent/JPS6390475U/ja
Application grantedgrantedCritical
Publication of JPH0230057Y2publicationCriticalpatent/JPH0230057Y2/ja