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Application filed by Niels FriborgfiledCriticalNiels Friborg
Priority to DK192883ApriorityCriticalpatent/DK157568C/da
Publication of DK192883D0publicationCriticalpatent/DK192883D0/da
Publication of DK192883ApublicationCriticalpatent/DK192883A/da
Publication of DK157568BpublicationCriticalpatent/DK157568B/da
Application grantedgrantedCritical
Publication of DK157568CpublicationCriticalpatent/DK157568C/da