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GM?s 09 patent filings include Plenty of Green Tech

Just one example: Advances in Shape Memory alloys (SMA) could produce usable power from waste heat which to is just a curiosity waiting to be exploited. More than half of the 1,300 patents filed by General Motors Co. in 2009 are green innovations, proof of the rapid development of groundbreaking technology by GM researchers and engineers.

GM?s 09 patent filings include Plenty of Green Tech
xcel, May 13, 2010
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