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Priority claimed from DE19722228999external-prioritypatent/DE2228999C3/de
Application filed by Siemens AgfiledCriticalSiemens Ag
Publication of ATA415473ApublicationCriticalpatent/ATA415473A/de
Application grantedgrantedCritical
Publication of AT329632BpublicationCriticalpatent/AT329632B/de