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Priority claimed from JP40894790Aexternal-prioritypatent/JP3015112B2/en
Priority claimed from JP8240291Aexternal-prioritypatent/JP3082957B2/en
Priority claimed from JP8240191Aexternal-prioritypatent/JP3200082B2/en
Application filed by Canon KkfiledCriticalCanon Kk
Publication of SG72650A1publicationCriticalpatent/SG72650A1/en