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Priority to JP2987586UpriorityCriticalpatent/JPH0234504Y2/ja
Priority to KR1019870000802Aprioritypatent/KR940001991B1/ko
Priority to US07/010,466prioritypatent/US4799578A/en
Priority to CN87100601Aprioritypatent/CN1022342C/zh
Publication of JPS62141932UpublicationCriticalpatent/JPS62141932U/ja
Priority to US07/242,307prioritypatent/US4896756A/en
Application grantedgrantedCritical
Publication of JPH0234504Y2publicationCriticalpatent/JPH0234504Y2/ja