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 filedfiledCritical
Priority to PL22823880ApriorityCriticalpatent/PL125126B2/en
Publication of PL228238A2publicationCriticalpatent/PL228238A2/xx
Publication of PL125126B2publicationCriticalpatent/PL125126B2/en
PL22823880A1980-12-021980-12-02Method of building high axle load withstanding railroad tracks in particular for plant transportation purposes
PL125126B2
(en)