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Priority to JP7083389UpriorityCriticalpatent/JPH0310071U/ja
Priority to US07/533,552prioritypatent/US5058559A/en
Priority to KR2019900008015Uprioritypatent/KR950002526Y1/ko
Priority to DE4018673Aprioritypatent/DE4018673C2/de
Publication of JPH0310071UpublicationCriticalpatent/JPH0310071U/ja