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 Intreprinderea De Carotaj Si Perforare,RofiledCriticalIntreprinderea De Carotaj Si Perforare,Ro
Priority to RO85120199ApriorityCriticalpatent/RO89819A2/ro
Publication of RO89819A2publicationCriticalpatent/RO89819A2/ro