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Priority claimed from DEF50310Aexternal-prioritypatent/DE1261472B/de
Application filed by Karl Fischer, Kreditanstalt Fuer Eisen Und SfiledCriticalKarl Fischer
Application grantedgrantedCritical
Publication of FI52590BpublicationCriticalpatent/FI52590B/fi
Publication of FI52590CpublicationCriticalpatent/FI52590C/fi