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Application filed by Ernst HaeusslerfiledCriticalErnst Haeussler
Priority to FI761128ApriorityCriticalpatent/FI56571C/fi
Publication of FI761128ApublicationCriticalpatent/FI761128A/fi
Application grantedgrantedCritical
Publication of FI56571BpublicationCriticalpatent/FI56571B/fi
Publication of FI56571CpublicationCriticalpatent/FI56571C/fi