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Priority to JP1987170805UpriorityCriticalpatent/JPH0175242U/ja
Priority to GB8826223Aprioritypatent/GB2212295B/en
Priority to DE19883838041prioritypatent/DE3838041A1/de
Publication of JPH0175242UpublicationCriticalpatent/JPH0175242U/ja
Priority to GB9115322Aprioritypatent/GB2246449B/en
Priority to GB9115323Aprioritypatent/GB2246450B/en