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Priority to JP1986175812UpriorityCriticalpatent/JPH0226336Y2/ja
Priority to US07/107,459prioritypatent/US4815174A/en
Priority to KR2019870017915Uprioritypatent/KR920002503Y1/ko
Publication of JPS6379729UpublicationCriticalpatent/JPS6379729U/ja
Application grantedgrantedCritical
Publication of JPH0226336Y2publicationCriticalpatent/JPH0226336Y2/ja
