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Priority to JP3535889UpriorityCriticalpatent/JPH02126328U/ja
Priority to US07/499,609prioritypatent/US5028748A/en
Priority to DE69027696Tprioritypatent/DE69027696T2/de
Priority to AT90105837Tprioritypatent/ATE140338T1/de
Priority to EP90105837Aprioritypatent/EP0390084B1/en
Publication of JPH02126328UpublicationCriticalpatent/JPH02126328U/ja