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 Sumitomo Metal IndfiledCriticalSumitomo Metal Ind
Priority to AR25164373ApriorityCriticalpatent/AR198717A1/en
Application grantedgrantedCritical
Publication of AR198717A1publicationCriticalpatent/AR198717A1/en