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A technician assembles motherboards for Bullx R computer systems at the Bull SA headquarters in Angers, France, on Monday, June 23, 2014. Thierry Breton, chief executive officer of software maker Atos, is engineering a 620 million-euro ($846 million) bid to acquire Bull, the company he tried to revive two decades ago. Photographer: Balint Porneczi/Bloomberg via Getty Images

A technician assembles motherboards for Bullx R computer systems at the Bull SA headquarters in Angers, France, on Monday, June 23, 2014. Thierry Breton, chief executive officer of software maker Atos, is engineering a 620 million-euro ($846 million) bid to acquire Bull, the company he tried to revive two decades ago. Photographer: Balint Porneczi/Bloomberg via Getty Images