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Application filed by Mårten Pehrson Johan, Viktor Pehrson RagnarfiledCriticalMårten Pehrson Johan
Priority to IS174ApriorityCriticalpatent/IS87B6/is
Publication of IS174A7publicationCriticalpatent/IS174A7/is
Publication of IS87B6publicationCriticalpatent/IS87B6/is
Fremgangsmaade til samtidig Fremstilling af Jærn eller kulstofholdige Jærnsorter og Cement eller hydraulisk Kalk i en Roterovn samt Roterovn til Udførelse af Fremgangsmaaden.