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Priority to JP66690UpriorityCriticalpatent/JPH0392803U/ja
Priority to US07/632,161prioritypatent/US5122768A/en
Priority to GB9100149Aprioritypatent/GB2240432B/en
Priority to DE4100340Aprioritypatent/DE4100340A1/de
Publication of JPH0392803UpublicationCriticalpatent/JPH0392803U/ja
Priority to GB9323049Aprioritypatent/GB2271889B/en