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Priority to JP1990098770UpriorityCriticalpatent/JP2505383Y2/ja
Priority to EP91115953Aprioritypatent/EP0479059B1/en
Priority to DE69119017Tprioritypatent/DE69119017T2/de
Publication of JPH0457882UpublicationCriticalpatent/JPH0457882U/ja
Priority to US08/353,304prioritypatent/US5497170A/en
Application grantedgrantedCritical
Publication of JP2505383Y2publicationCriticalpatent/JP2505383Y2/ja