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 Frantisek Madera, Josef HolomekfiledCriticalFrantisek Madera
Priority to CS51075ApriorityCriticalpatent/CS181923B1/cs
Publication of CS181923B1publicationCriticalpatent/CS181923B1/cs