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Priority to JP15389787UpriorityCriticalpatent/JPH0158272U/ja
Priority to DE8888114189Tprioritypatent/DE3877661T2/de
Priority to EP88114189Aprioritypatent/EP0305991B1/en
Priority to US07/238,431prioritypatent/US4897571A/en
Publication of JPH0158272UpublicationCriticalpatent/JPH0158272U/ja
