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Hitachi Ltd
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Hitachi Ltd
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Application filed by Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP5273078ApriorityCriticalpatent/JPS54144902A/ja
Publication of JPS54144902ApublicationCriticalpatent/JPS54144902A/ja
Systeme de reglage de la frequence d'un laser par detection du battement resultant de l'interference de frequence avec un laser de reference, pour spectroscopie