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Priority claimed from DEM48804Aexternal-prioritypatent/DE1207299B/en
Priority claimed from DEM49643Aexternal-prioritypatent/DE1183028B/en
Priority claimed from DE1961M0050426external-prioritypatent/DE1245878B/en
Priority claimed from DEM51093Aexternal-prioritypatent/DE1187199B/en
Application filed by Eugen MayerfiledCriticalEugen Mayer
Publication of BE616798ApublicationCriticalpatent/BE616798A/en