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Priority to AT197017DpriorityCriticalpatent/AT197017B/de
Application filed by Tiroler Roehren & MetallwerkfiledCriticalTiroler Roehren & Metallwerk
Priority to AT461357Aprioritypatent/AT202284B/de
Application grantedgrantedCritical
Publication of AT202284BpublicationCriticalpatent/AT202284B/de