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Priority to JP46072786ApriorityCriticalpatent/JPS5121356B2/ja
Publication of JPS4839045ApublicationCriticalpatent/JPS4839045A/ja
Publication of JPS5121356B2publicationCriticalpatent/JPS5121356B2/ja
Method and apparatus for optical information, method and apparatus for reproducing optical information, apparatus for recording/reproducing optical information, and optical information recording medium