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Priority to JP1986147556UpriorityCriticalpatent/JPH0332052Y2/ja
Priority to US07/097,773prioritypatent/US4838815A/en
Priority to KR1019870010686Aprioritypatent/KR900005087B1/ko
Publication of JPS6354279UpublicationCriticalpatent/JPS6354279U/ja
Application grantedgrantedCritical
Publication of JPH0332052Y2publicationCriticalpatent/JPH0332052Y2/ja
