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Priority to JP198788UpriorityCriticalpatent/JPH01107349U/ja
Priority to US07/206,365prioritypatent/US4892522A/en
Priority to DE8888305457Tprioritypatent/DE3874014T2/de
Priority to EP88305457Aprioritypatent/EP0295888B1/en
Publication of JPH01107349UpublicationCriticalpatent/JPH01107349U/ja