SAVANNAH, Ga.--(BUSINESS WIRE)--PureSpectrum, Inc. (Pink Sheets: PSPM) is registered to exhibit at the World Energy Engineering Conference in November in Washington, D.C., and the company hopes to support sales by strengthening existing relationships with government agencies focused on energy efficiency and connecting with multiple audiences searching for new products which promote energy efficiency. The World Energy Engineering Congress is widely recognized as the most comprehensive event for e
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