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Priority to JP3044086UpriorityCriticalpatent/JPH0314271Y2/ja
Priority to US07/020,325prioritypatent/US4850102A/en
Priority to CA000530854Aprioritypatent/CA1289346C/en
Priority to GB8704620Aprioritypatent/GB2187120B/en
Publication of JPS62141426UpublicationCriticalpatent/JPS62141426U/ja
Application grantedgrantedCritical
Publication of JPH0314271Y2publicationCriticalpatent/JPH0314271Y2/ja