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Priority to JP1989033635UpriorityCriticalpatent/JP2565969Y2/ja
Priority to EP90301178Aprioritypatent/EP0382448B1/en
Priority to DE69009074Tprioritypatent/DE69009074T2/de
Priority to CA002009515Aprioritypatent/CA2009515C/en
Publication of JPH02123962UpublicationCriticalpatent/JPH02123962U/ja
Priority to US07/713,013prioritypatent/US5138396A/en
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Publication of JP2565969Y2publicationCriticalpatent/JP2565969Y2/ja