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Application filed by Украинская Инженерно-Педагогическая АкадемияfiledCriticalУкраинская Инженерно-Педагогическая Академия
Priority to UAU201213459UpriorityCriticalpatent/UA81577U/en
Publication of UA81577UpublicationCriticalpatent/UA81577U/en
A device for boring holes comprises a housing, a drive shaft, two boring heads with cutting elements, besides the second boring head has an external crown gear.
UAU201213459U2012-11-262012-11-26Device for boring holes
UA81577U
(en)