Apple, maker of the iPod media player, and CBS were sued for trademark infringement by closely held computer-accessory firm Man & Machine over the name of Apple's wireless "Mighty Mouse" device. Apple started selling computer mice under the name "Mighty Mouse" more than a year after Man & Machine began selling waterproof and chemical-resistant computer mice to labs and hospitals under that name in 2004, according to the suit filed Tuesday in Greenbelt, Md.