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 Antonin Sobotka, Frantisek CapekfiledCriticalAntonin Sobotka
Priority to CS235176ApriorityCriticalpatent/CS179320B1/en
Publication of CS179320B1publicationCriticalpatent/CS179320B1/en