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 Hajek Jiri, Milan Urie, Hampl Frantisek, Votava Vladimir, Stanek Jan, Drahonovsky Jan, Ivan Ing Vesely, Josef Ing Kuban, Svoboda Jiri, Palecek Jaroslav, Mostecky JirifiledCriticalHajek Jiri
Priority to CS861897ApriorityCriticalpatent/CS252921B1/en
Publication of CS189786A1publicationCriticalpatent/CS189786A1/en
Publication of CS252921B1publicationCriticalpatent/CS252921B1/en