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 Jozef Ing PillarfiledCriticalJozef Ing Pillar
Priority to CS843256ApriorityCriticalpatent/CS251480B1/en
Publication of CS325684A1publicationCriticalpatent/CS325684A1/en
Publication of CS251480B1publicationCriticalpatent/CS251480B1/en