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Application filed by Hilding Eric Boerje KarlssonfiledCriticalHilding Eric Boerje Karlsson
Priority to FI752574ApriorityCriticalpatent/FI64528C/fi
Publication of FI752574A7publicationCriticalpatent/FI752574A7/fi
Application grantedgrantedCritical
Publication of FI64528BpublicationCriticalpatent/FI64528B/fi
Publication of FI64528CpublicationCriticalpatent/FI64528C/fi