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Priority claimed from JP30833786Aexternal-prioritypatent/JPS63162671A/en
Priority claimed from JP62273270Aexternal-prioritypatent/JPH0625232B2/en
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Priority claimed from EP87311380Aexternal-prioritypatent/EP0273710B2/en
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Publication of ATE85626T1publicationCriticalpatent/ATE85626T1/en
OPTICALLY ACTIVE BENZO COMBINATIONS, METHOD FOR THE PRODUCTION THEREOF AND LIQUID CRYSTALLINE COMPOSITIONS CONTAINING IT AS ACTIVE SUBSTANCE AND OPTICAL SWITCHING ELEMENTS.