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 filedfiledCritical
Priority to CS435071ApriorityCriticalpatent/CS157249B1/cs
Priority to DD163047Aprioritypatent/DD96425A1/xx
Priority to HULE000660prioritypatent/HU164629B/hu
Publication of CS157249B1publicationCriticalpatent/CS157249B1/cs