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.)
Filing date
Publication date
Priority claimed from JP61083924Aexternal-prioritypatent/JP2662388B2/ja
Priority claimed from JP8550786Aexternal-prioritypatent/JPH0639701B2/ja
Priority claimed from JP8550886Aexternal-prioritypatent/JPS62240767A/ja
Priority claimed from JP8682586Aexternal-prioritypatent/JPS62243767A/ja
Application filed by Canon KkfiledCriticalCanon Kk
Priority claimed from EP87303225Aexternal-prioritypatent/EP0241317B1/de
Application grantedgrantedCritical
Publication of ATE86793T1publicationCriticalpatent/ATE86793T1/de