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Priority to JP8058490UpriorityCriticalpatent/JPH0440270U/ja
Priority to GB9116353Aprioritypatent/GB2246878B/en
Priority to DE4125070Aprioritypatent/DE4125070C2/de
Publication of JPH0440270UpublicationCriticalpatent/JPH0440270U/ja
Priority to US08/074,565prioritypatent/US5296868A/en