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Priority to JP1986190776UpriorityCriticalpatent/JPH0324040Y2/ja
Priority to US07/107,459prioritypatent/US4815174A/en
Priority to KR2019870017915Uprioritypatent/KR920002503Y1/ko
Publication of JPS6395466UpublicationCriticalpatent/JPS6395466U/ja
Application grantedgrantedCritical
Publication of JPH0324040Y2publicationCriticalpatent/JPH0324040Y2/ja
