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Application filedfiledCritical
Priority to JP10290488UpriorityCriticalpatent/JPH06414Y2/ja
Priority to EP89307823Aprioritypatent/EP0354001B1/en
Priority to CA000607196Aprioritypatent/CA1326365C/en
Priority to DE8989307823Tprioritypatent/DE68905703T2/de
Priority to US07/388,443prioritypatent/US5022908A/en
Priority to KR1019890011093Aprioritypatent/KR970003514B1/ko
Publication of JPH0225542UpublicationCriticalpatent/JPH0225542U/ja
Application grantedgrantedCritical
Publication of JPH06414Y2publicationCriticalpatent/JPH06414Y2/ja