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Application filed by Buessing & Sohn HfiledCriticalBuessing & Sohn H
Priority to FI1320/74ApriorityCriticalpatent/FI60673C/fi
Publication of FI132074A7publicationCriticalpatent/FI132074A7/fi
Application grantedgrantedCritical
Publication of FI60673BpublicationCriticalpatent/FI60673B/fi
Publication of FI60673CpublicationCriticalpatent/FI60673C/fi