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Priority to JP5217890UpriorityCriticalpatent/JPH0412467U/ja
Priority to US07/700,509prioritypatent/US5172453A/en
Priority to ITRM910338Aprioritypatent/IT1249095B/it
Priority to DE4116541Aprioritypatent/DE4116541A1/de
Publication of JPH0412467UpublicationCriticalpatent/JPH0412467U/ja
