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Priority claimed from FR7613688Aexternal-prioritypatent/FR2350198A1/fr
Application filed by Chambon MachinesfiledCriticalChambon Machines
Priority to AT605979ApriorityCriticalpatent/AT378738B/de
Publication of ATA605979ApublicationCriticalpatent/ATA605979A/de
Application grantedgrantedCritical
Publication of AT378738BpublicationCriticalpatent/AT378738B/de