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
Priority claimed from CS153781Aexternal-prioritypatent/CS229063B1/en
Application filed by Dvorsky Drahomir, Karel CerovskyfiledCriticalDvorsky Drahomir
Priority to CS350484ApriorityCriticalpatent/CS241919B3/en
Publication of CS350484A1publicationCriticalpatent/CS350484A1/en
Publication of CS241919B3publicationCriticalpatent/CS241919B3/en