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Priority to JP1989101845UpriorityCriticalpatent/JP2504527Y2/ja
Priority to DE1990612930prioritypatent/DE69012930T2/de
Priority to EP19900114366prioritypatent/EP0415083B1/en
Publication of JPH0340996UpublicationCriticalpatent/JPH0340996U/ja
Priority to US08/123,467prioritypatent/US5450960A/en
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Publication of JP2504527Y2publicationCriticalpatent/JP2504527Y2/ja