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 Groch MarianfiledCriticalGroch Marian
Priority to CS879939ApriorityCriticalpatent/CS264493B1/cs
Publication of CS993987A1publicationCriticalpatent/CS993987A1/cs
Publication of CS264493B1publicationCriticalpatent/CS264493B1/cs