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Priority to JP9758186UpriorityCriticalpatent/JPH0422987Y2/ja
Priority to US07/066,710prioritypatent/US4943179A/en
Priority to GB8715060Aprioritypatent/GB2192658B/en
Priority to FR878709074Aprioritypatent/FR2600708B1/fr
Priority to DE19873721161prioritypatent/DE3721161A1/de
Publication of JPS636840UpublicationCriticalpatent/JPS636840U/ja
Application grantedgrantedCritical
Publication of JPH0422987Y2publicationCriticalpatent/JPH0422987Y2/ja