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Priority to JP2294185UpriorityCriticalpatent/JPH022948Y2/ja
Priority to US06/724,284prioritypatent/US4662826A/en
Priority to DE19853514317prioritypatent/DE3514317A1/de
Publication of JPS61138879UpublicationCriticalpatent/JPS61138879U/ja
Application grantedgrantedCritical
Publication of JPH022948Y2publicationCriticalpatent/JPH022948Y2/ja