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 Sindelar Bedrich, Strnad PavelfiledCriticalSindelar Bedrich
Priority to CS848092ApriorityCriticalpatent/CS243255B1/cs
Publication of CS809284A1publicationCriticalpatent/CS809284A1/cs
Publication of CS243255B1publicationCriticalpatent/CS243255B1/cs