Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority claimed from JP8204594Aexternal-prioritypatent/JP3209852B2/en
Application filed by Canon KkfiledCriticalCanon Kk
Priority to SG1995000295ApriorityCriticalpatent/SG30358A1/en
Publication of SG30358A1publicationCriticalpatent/SG30358A1/en