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Priority to JP1990090859UpriorityCriticalpatent/JPH0451072U/ja
Priority to US07/748,937prioritypatent/US5289069A/en
Priority to DE69107941Tprioritypatent/DE69107941T2/de
Priority to EP91307821Aprioritypatent/EP0478142B1/en
Priority to KR1019910015025Aprioritypatent/KR0130129B1/ko
Priority to TW080108152Aprioritypatent/TW205117B/zh
Publication of JPH0451072UpublicationCriticalpatent/JPH0451072U/ja
