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Application filed by Heikki Johannes AhonenfiledCriticalHeikki Johannes Ahonen
Priority to FI24074ApriorityCriticalpatent/FI52827C/fi
Publication of FI740240A0publicationCriticalpatent/FI740240A0/fi
Publication of FI52827BpublicationCriticalpatent/FI52827B/fi
Application grantedgrantedCritical
Publication of FI52827CpublicationCriticalpatent/FI52827C/fi