By Miyoung Kim SEOUL (Reuters) - Overtaking Apple Inc as the world's leading maker of smartphones has stretched Samsung Electronics Co's in-house supply lines, and the South Korean firm is now courting some of its rival's main parts suppliers. After costly courtroom battles over technology patents, the two gadget giants are now going head-to-head over securing the best supply of parts as they jostle to rule the $253 billion smartphone market. The two took 100 percent of the industry's profit in January-March, Canaccord Genuity data show. ...



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