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Priority to JP19130986UpriorityCriticalpatent/JPH0513436Y2/ja
Priority to US07/130,111prioritypatent/US4818388A/en
Priority to KR1019870014032Aprioritypatent/KR950002538B1/ko
Priority to CA000553940Aprioritypatent/CA1318604C/en
Publication of JPS6394595UpublicationCriticalpatent/JPS6394595U/ja
Application grantedgrantedCritical
Publication of JPH0513436Y2publicationCriticalpatent/JPH0513436Y2/ja