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Priority claimed from FI670063Aexternal-prioritypatent/FI46058C/fi
Application filed by Passavant WerkefiledCriticalPassavant Werke
Application grantedgrantedCritical
Publication of FI52702BpublicationCriticalpatent/FI52702B/fi
Publication of FI52702CpublicationCriticalpatent/FI52702C/fi