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Priority to JP11467889UpriorityCriticalpatent/JPH0356043U/ja
Priority to US07/586,501prioritypatent/US5195886A/en
Priority to DE4030384Aprioritypatent/DE4030384A1/de
Priority to KR1019900015489Aprioritypatent/KR910006057A/ko
Publication of JPH0356043UpublicationCriticalpatent/JPH0356043U/ja
