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Application filed by Toivo Aaprami RapakkofiledCriticalToivo Aaprami Rapakko
Priority to FI892457ApriorityCriticalpatent/FI81726C/fi
Publication of FI892457A0publicationCriticalpatent/FI892457A0/fi
Publication of FI892457ApublicationCriticalpatent/FI892457A/fi
Publication of FI81726BpublicationCriticalpatent/FI81726B/fi
Application grantedgrantedCritical
Publication of FI81726CpublicationCriticalpatent/FI81726C/fi