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Priority claimed from CH1336272Aexternal-prioritypatent/CH578358A5/de
Application filed by Fruh JakobfiledCriticalFruh Jakob
Priority to AT682174ApriorityCriticalpatent/AT332776B/de
Publication of ATA682174ApublicationCriticalpatent/ATA682174A/de
Application grantedgrantedCritical
Publication of AT332776BpublicationCriticalpatent/AT332776B/de