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Priority to JP13366988UpriorityCriticalpatent/JPH0254307U/ja
Priority to US07/414,241prioritypatent/US4996955A/en
Priority to DE68914231Tprioritypatent/DE68914231T2/de
Priority to EP89310036Aprioritypatent/EP0361980B1/en
Publication of JPH0254307UpublicationCriticalpatent/JPH0254307U/ja
