Application
14416004 · MINE AREA DISTRIBUTED COMBINED COOLING HEATING POWER ENERGY SYSTEM FOR EXTRACTING GAS FOR COAL MINE
Filed 2015-01-20 · Granted · Patent 9605512 (2017-03-28) The official file ↗The patent and its PDF ↗ · Art unit 3676 · Examiner Elizabeth C Gottlieb Gitlin Hard · CPC E21B 36/00 · CHINA UNIVERSITY OF MINING AND TECHNOLOGY · TRASKBRITT, P.C.
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to disposition 26.2 mo
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