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Application filed by Aarne PuupponenfiledCriticalAarne Puupponen
Priority to FI761300ApriorityCriticalpatent/FI54865C/fi
Publication of FI761300ApublicationCriticalpatent/FI761300A/fi
Publication of FI54865BpublicationCriticalpatent/FI54865B/fi
Application grantedgrantedCritical
Publication of FI54865CpublicationCriticalpatent/FI54865C/fi