Nokia

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, the world's leading cell phone maker, estimates 450 workers will be cut as the cell phone maker reorganizes its sales and marketing operations.

In addition, the company said its research center plans to "sharpen its focus on fewer but stronger research areas," and about 130 jobs will be slashed under this reorganization.

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Nokia also said it will close its Turku site in Finland by the end of January 2009 and relocate the operations. The company also plans some "smaller" work force adjustments in its global operations.

"Today's changes are part of Nokia's constant renewal where it is important to be close to our customers and ensure that our people are able to focus on the key business priorities," said a Nokia executive in a statement.

Nokia on Tuesday also introduced a range of mobile devices for customers in emerging markets.

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