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 Optica Romana,RofiledCriticalIntreprinderea Optica Romana,Ro
Priority to RO83113165ApriorityCriticalpatent/RO87870A2/ro
Publication of RO87870B1publicationCriticalpatent/RO87870B1/ro
Publication of RO87870A2publicationCriticalpatent/RO87870A2/ro