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 Ing HruskafiledCriticalFrantisek Ing Hruska
Priority to CS905844ApriorityCriticalpatent/CZ281132B6/en
Publication of CS584490A3publicationCriticalpatent/CS584490A3/en
Publication of CZ281132B6publicationCriticalpatent/CZ281132B6/en