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 Ludek Gloger, Josef PolachfiledCriticalLudek Gloger
Priority to CS423575ApriorityCriticalpatent/CS178627B1/cs
Publication of CS178627B1publicationCriticalpatent/CS178627B1/cs