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Priority to JP15992388UpriorityCriticalpatent/JPH088827Y2/ja
Priority to US07/443,319prioritypatent/US4972205A/en
Priority to DE3940545Aprioritypatent/DE3940545C2/de
Priority to KR1019890018209Aprioritypatent/KR920009861B1/ko
Publication of JPH0280452UpublicationCriticalpatent/JPH0280452U/ja
Application grantedgrantedCritical
Publication of JPH088827Y2publicationCriticalpatent/JPH088827Y2/ja