Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ingenioer Alberto Ferrero, Fornaci Riunite S P A, Ingenioer Jenik VondrousfiledCriticalIngenioer Alberto Ferrero
Priority to DK251752ApriorityCriticalpatent/DK82297C/en
Application grantedgrantedCritical
Publication of DK82297CpublicationCriticalpatent/DK82297C/en