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Priority to JP15315189UpriorityCriticalpatent/JPH0390502U/ja
Priority to GB9020943Aprioritypatent/GB2236432B/en
Priority to US07/590,150prioritypatent/US5113310A/en
Priority to DE4030763Aprioritypatent/DE4030763C2/de
Publication of JPH0390502UpublicationCriticalpatent/JPH0390502U/ja
