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Application filed by Risto MartikainenfiledCriticalRisto Martikainen
Priority to FI890515ApriorityCriticalpatent/FI84014C/fi
Publication of FI890515A0publicationCriticalpatent/FI890515A0/fi
Publication of FI890515ApublicationCriticalpatent/FI890515A/fi
Application grantedgrantedCritical
Publication of FI84014BpublicationCriticalpatent/FI84014B/fi
Publication of FI84014CpublicationCriticalpatent/FI84014C/fi