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Priority claimed from CH32379Aexternal-prioritypatent/CH635517A5/de
Application filed by Heatrans AgfiledCriticalHeatrans Ag
Publication of ATA900380ApublicationCriticalpatent/ATA900380A/de
Application grantedgrantedCritical
Publication of AT373385BpublicationCriticalpatent/AT373385B/de