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 Jaroslav Ing Kaspar, Jaroslav KorcinafiledCriticalJaroslav Ing Kaspar
Priority to CS836902ApriorityCriticalpatent/CS233280B1/en
Publication of CS690283A1publicationCriticalpatent/CS690283A1/en
Publication of CS233280B1publicationCriticalpatent/CS233280B1/en