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 Vosta Jan, Milan Smrz, Horak Zdenek, Oldrich Rndr SlamafiledCriticalVosta Jan
Priority to CS237189ApriorityCriticalpatent/CS274321B1/cs
Publication of CS237189A1publicationCriticalpatent/CS237189A1/cs
Publication of CS274321B1publicationCriticalpatent/CS274321B1/cs