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Priority to JP1990052636UpriorityCriticalpatent/JP2522170Y2/ja
Priority to US07/671,416prioritypatent/US5141452A/en
Priority to EP91400776Aprioritypatent/EP0448476B1/en
Priority to DE69109720Tprioritypatent/DE69109720T2/de
Publication of JPH0412270UpublicationCriticalpatent/JPH0412270U/ja
Application grantedgrantedCritical
Publication of JP2522170Y2publicationCriticalpatent/JP2522170Y2/ja