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Priority to JP1986029904UpriorityCriticalpatent/JPH051412Y2/ja
Priority to GB8704701Aprioritypatent/GB2187138B/en
Publication of JPS62139641UpublicationCriticalpatent/JPS62139641U/ja
Priority to US07/333,863prioritypatent/US4974976A/en
Priority to GB9006501Aprioritypatent/GB2230741B/en
Priority to GB9006502Aprioritypatent/GB2230742B/en
Application grantedgrantedCritical
Publication of JPH051412Y2publicationCriticalpatent/JPH051412Y2/ja