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 Vaclav HavrlantfiledCriticalVaclav Havrlant
Priority to CS887867ApriorityCriticalpatent/CS786788A1/cs
Publication of CS786788A1publicationCriticalpatent/CS786788A1/cs