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Priority claimed from FI680022Aexternal-prioritypatent/FI48206C/fi
Application filed by Kroyer K K KfiledCriticalKroyer K K K
Publication of FI54504BpublicationCriticalpatent/FI54504B/fi
Application grantedgrantedCritical
Publication of FI54504CpublicationCriticalpatent/FI54504C/fi