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Priority to JP12232288UpriorityCriticalpatent/JPH0245561U/ja
Priority to US07/407,935prioritypatent/US4986450A/en
Priority to EP89117244Aprioritypatent/EP0360198B1/en
Priority to DE68919612Tprioritypatent/DE68919612T2/de
Publication of JPH0245561UpublicationCriticalpatent/JPH0245561U/ja