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 Akad Gorniczo HutniczafiledCriticalAkad Gorniczo Hutnicza
Priority to PL95306784ApriorityCriticalpatent/PL174484B1/en
Publication of PL306784A1publicationCriticalpatent/PL306784A1/en
Publication of PL174484B1publicationCriticalpatent/PL174484B1/en