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Priority to JP1988169336UpriorityCriticalpatent/JPH0289338U/ja
Priority to US07/417,364prioritypatent/US4996890A/en
Priority to DE68911826Tprioritypatent/DE68911826T2/de
Priority to EP89118636Aprioritypatent/EP0362890B1/en
Priority to KR1019890014441Aprioritypatent/KR930005362B1/ko
Publication of JPH0289338UpublicationCriticalpatent/JPH0289338U/ja