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Priority to JP9885387UpriorityCriticalpatent/JPH069336Y2/ja
Priority to US07/191,411prioritypatent/US4799561A/en
Priority to CN88102671Aprioritypatent/CN1013709B/zh
Priority to EP88304179Aprioritypatent/EP0291258A3/en
Publication of JPS645127UpublicationCriticalpatent/JPS645127U/ja
Application grantedgrantedCritical
Publication of JPH069336Y2publicationCriticalpatent/JPH069336Y2/ja