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 Jan Ing Skavrada, Pavel Ing HorakfiledCriticalJan Ing Skavrada
Priority to CS231488ApriorityCriticalpatent/CS8802314A3/cs
Publication of CS275115B2publicationCriticalpatent/CS275115B2/cs
Publication of CS8802314A3publicationCriticalpatent/CS8802314A3/cs