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ClearSign Appoints Robert T. Hoffman Sr. to Board of Directors

ClearSign Technologies Corporation  (CLIR) 
US:NASDAQ Investor Relations: clearsign.com/investors
PDF SEATTLE, July 23, 2018 /PRNewswire/ -- ClearSign Combustion Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion techno [Read more]