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Priority to JP13467588UpriorityCriticalpatent/JPH0256513U/ja
Priority to DE3934283Aprioritypatent/DE3934283A1/de
Priority to KR2019890014976Uprioritypatent/KR950008236Y1/ko
Priority to US07/422,405prioritypatent/US5019023A/en
Publication of JPH0256513UpublicationCriticalpatent/JPH0256513U/ja