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Application filed by Николай Алексеевич ЗеленскийfiledCriticalНиколай Алексеевич Зеленский
Priority to UAU200806661UpriorityCriticalpatent/UA34621U/en
Publication of UA34621UpublicationCriticalpatent/UA34621U/en
Method for filling mine workings includes supply of backfilling material by pipeline, filling of cavities of working, installation of link, laying backfilling material.
UAU200806661U2008-05-152008-05-15Method for filling mine workings
UA34621U
(en)