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Priority claimed from GB1819974Aexternal-prioritypatent/GB1471445A/en
Application filed by Ciba Geigy AgfiledCriticalCiba Geigy Ag
Priority claimed from AT317276Aexternal-prioritypatent/AT350552B/de
Publication of ATA306276ApublicationCriticalpatent/ATA306276A/de
Application grantedgrantedCritical
Publication of AT346371BpublicationCriticalpatent/AT346371B/de