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Priority to JP9173990UpriorityCriticalpatent/JP2525285Y2/ja
Priority to US07/720,668prioritypatent/US5283474A/en
Priority to DE69128002Tprioritypatent/DE69128002T2/de
Priority to EP19910305777prioritypatent/EP0468642B1/en
Publication of JPH0450932UpublicationCriticalpatent/JPH0450932U/ja
Application grantedgrantedCritical
Publication of JP2525285Y2publicationCriticalpatent/JP2525285Y2/ja
