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 Inst Cercetari MetalurgicefiledCriticalInst Cercetari Metalurgice
Publication of ATA161973ApublicationCriticalpatent/ATA161973A/en
Application grantedgrantedCritical
Publication of AT342102BpublicationCriticalpatent/AT342102B/en