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 Nikolaj S Talis, Anatolij I JursakovfiledCriticalNikolaj S Talis
Priority to CS829773ApriorityCriticalpatent/CS186323B1/cs
Publication of CS186323B1publicationCriticalpatent/CS186323B1/cs