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 Vladimir S Kravcenko, Vladimir V KucejevfiledCriticalVladimir S Kravcenko
Publication of CS34483A1publicationCriticalpatent/CS34483A1/cs
Publication of CS245298B1publicationCriticalpatent/CS245298B1/cs