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Application filed by Michal BartkofiledCriticalMichal Bartko
Priority to CS63678ApriorityCriticalpatent/CS205358B1/ch
Publication of CS205358B1publicationCriticalpatent/CS205358B1/ch
Procede et appareil de fixation de machine de forage ou analogues, servant a introduire des organes allonges dans un terrain contenant des blocs et des pierres