http://www.freshpatents.com/Tool-changing-dtnewntc483.php USPTO Class 483 - Tool changing en-us Wed, 27 May 2009 00:39:18 -0700 1000 Wednesday Thursday Friday Saturday Sunday 141 31 http://www.freshpatents.com/index.php?rss=true http://www.freshpatents.com/images/freshpatentsnav_rss.gif http://www.freshpatents.com/Ball-bearing-for-spindle-turning-device-of-machine-tool-and-spindle-turning-device-of-machine-tool-using-the-same-dt20090521ptan20090131235.php Wed, 27 May 2009 00:39:18 -0700 A ball bearing for spindle turning device for use in the spindle turning device of a machine tool, and a spindle turning device for a machine tool using the same, which is compatible with machine tools whose recent trend is for more composite configurations while maintaining and achieving higher accuracy...