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 Josef Zadrazil, Jaroslav RusekfiledCriticalJosef Zadrazil
Priority to CS177076ApriorityCriticalpatent/CS185898B1/cs
Publication of CS185898B1publicationCriticalpatent/CS185898B1/cs