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Priority to JP1987162401UpriorityCriticalpatent/JPH0166726U/ja
Priority to GB8824622Aprioritypatent/GB2211664B/en
Priority to US07/260,380prioritypatent/US4877925A/en
Priority to KR1019880013731Aprioritypatent/KR890007336A/ko
Priority to DE3835970Aprioritypatent/DE3835970A1/de
Publication of JPH0166726UpublicationCriticalpatent/JPH0166726U/ja