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Priority claimed from JP61280273Aexternal-prioritypatent/JPH0733110B2/en
Priority claimed from JP61280274Aexternal-prioritypatent/JPS63132082A/en
Application filed by Canon KkfiledCriticalCanon Kk
Priority to SG124293ApriorityCriticalpatent/SG124293G/en
Publication of SG124293GpublicationCriticalpatent/SG124293G/en