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 Vlk, Zdenek Ing Dombrovsky, Jan Ing Razska, Petr Ing JankufiledCriticalJaroslav Ing Vlk
Priority to CS849430ApriorityCriticalpatent/CS251291B1/cs
Publication of CS943084A1publicationCriticalpatent/CS943084A1/cs
Publication of CS251291B1publicationCriticalpatent/CS251291B1/cs
CS849430A1984-12-061984-12-06Způsob zajištění předpěti obloukové výztuže dlouhých důlních děl vůči hornině a zvýšení její únosnosti a stability
CS251291B1
(cs)