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Application filed by Kalevi Johan Erland KurtenfiledCriticalKalevi Johan Erland Kurten
Priority to FI832704ApriorityCriticalpatent/FI72643C/fi
Publication of FI832704A0publicationCriticalpatent/FI832704A0/fi
Publication of FI832704ApublicationCriticalpatent/FI832704A/fi
Publication of FI72643BpublicationCriticalpatent/FI72643B/fi
Application grantedgrantedCritical
Publication of FI72643CpublicationCriticalpatent/FI72643C/fi