Украинский Государственный Научно-Исследовательский И Проектно-Конструкторский Институт Горной Геологии, Геомеханики И Маркшейдерского Дела
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 Украинский Государственный Научно-Исследовательский И Проектно-Конструкторский Институт Горной Геологии, Геомеханики И Маркшейдерского ДелаfiledCriticalУкраинский Государственный Научно-Исследовательский И Проектно-Конструкторский Институт Горной Геологии, Геомеханики И Маркшейдерского Дела
Priority to UAU200912930UpriorityCriticalpatent/UA49870U/en
Publication of UA49870UpublicationCriticalpatent/UA49870U/en
A method for protection of mine workings against effect of second working under conditions of unstable rocks relates to area of mining industry and can be used at protection of mine workings by protective coal pillars under conditions of unstable rocks.
UAU200912930U2009-12-142009-12-14Method for protection of mine workings against effect of second working under conditions of unstable rocks
UA49870U
(en)