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Application filed by Yhtyneet Paperitehtaat OyfiledCriticalYhtyneet Paperitehtaat Oy
Priority to FI850876ApriorityCriticalpatent/FI74927C/fi
Publication of FI850876A0publicationCriticalpatent/FI850876A0/fi
Priority to NO860803Aprioritypatent/NO162755C/no
Publication of FI850876LpublicationCriticalpatent/FI850876L/fi
Application grantedgrantedCritical
Publication of FI74927BpublicationCriticalpatent/FI74927B/fi
Publication of FI74927CpublicationCriticalpatent/FI74927C/fi