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Application filed by Muller Ludwig Dr IngfiledCriticalMuller Ludwig Dr Ing
Priority claimed from AT1019766Aexternal-prioritypatent/AT286883B/de
Publication of ATA235169ApublicationCriticalpatent/ATA235169A/de
Application grantedgrantedCritical
Publication of AT330095BpublicationCriticalpatent/AT330095B/de