General Electric, Siemens and Philips have long been rivals.
But recently a new front has opened between the industrial groups and it promises to be the hardest-fought competition of all over the title of the biggest seller of green products.
Fight to be eco top dog hots up
By Richard Milne in London
Published: November 22 2009 22:40 | Last updated: November 22 2009 22:40
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