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Patent on “Method For Strengthening Coal Pillars To Improve Underground Coal Recovery” by Dr. Ajay Chourasia, Koushik Pandit and Jalaj Parashar, filed in 2018 (No. 0156NF2018).
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Patent on “Method For Strengthening Coal Pillars To Improve Underground Coal Recovery” by Dr. Ajay Chourasia, Koushik Pandit and Jalaj Parashar, filed in 2018 (No. 0156NF2018).