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Priority to JP16167886UpriorityCriticalpatent/JPH0335905Y2/ja
Priority to US07/057,780prioritypatent/US4801249A/en
Priority to DE3718967Aprioritypatent/DE3718967C2/de
Publication of JPS6367682UpublicationCriticalpatent/JPS6367682U/ja
Application grantedgrantedCritical
Publication of JPH0335905Y2publicationCriticalpatent/JPH0335905Y2/ja