REFILE-UPDATE 6-Bayer clinches Monsanto with improved $66 billion bid

NEW YORK/FRANKFURT, Sept 14 (Reuters) - German drug and crop

chemical maker Bayer clinched a $66 billion takeover of U.S.

seeds company Monsanto on Wednesday, ending months of wrangling

with a third sweetened offer that marks the largest all-cash

deal on record.

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