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Priority claimed from NL7204353.Aexternal-prioritypatent/NL155946B/xx
Application filed by Itt, Axel Birck FabriksparkenfiledCriticalItt
Publication of DK133358BpublicationCriticalpatent/DK133358B/da
Application grantedgrantedCritical
Publication of DK133358CpublicationCriticalpatent/DK133358C/da