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Priority claimed from HUBA2642Aexternal-prioritypatent/HU162358B/hu
Application filed by Material Vegyi KszfiledCriticalMaterial Vegyi Ksz
Publication of DK44175ApublicationCriticalpatent/DK44175A/da
Publication of DK149332BpublicationCriticalpatent/DK149332B/da
Application grantedgrantedCritical
Publication of DK149332CpublicationCriticalpatent/DK149332C/da