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 JP61030898Aexternal-prioritypatent/JPH0676569B2/en
Priority claimed from JP61030896Aexternal-prioritypatent/JPS62190269A/en
Priority claimed from JP61088170Aexternal-prioritypatent/JPH072924B2/en
Priority claimed from JP61088171Aexternal-prioritypatent/JPH0653867B2/en
Application filed by Canon KkfiledCriticalCanon Kk
Priority to SG127493ApriorityCriticalpatent/SG127493G/en
Publication of SG127493GpublicationCriticalpatent/SG127493G/en