The first of these things, made from wood, could produce (*) 250 items per hour, although Hoe's "lightning" variety improved it to 8,000.  
Large-scale forms of these devices were only practical after the invention of the Fourdrinier Machine made one of their chief inputs much cheaper.  The dominant American manufacturer of these devices in the 19th century strangely never stopped producing saws.  That company, R. Hoe &amp; Co., created a device where as many as ten inputs fed into a central cylinder.  The first of these things, made from wood, could produce (*) 250 items per hour, although Hoe's "lightning" variety improved it to 8,000.  There's some evidence that Laurens Janszoon Coster may have been the first to invent one of these devices.  The more conventional inventor of these things may have been ruined by a lawsuit from his financier, Johann Fust, and also invented key accessories such as a hand mould.  An early one of these devices was operated by William Caxton.  For 10 points, name these devices first created by Johannes Gutenberg.
Large-scale forms of these devices were only practical after the invention of the Fourdrinier Machine made one of their chief inputs much cheaper.  
movable type printing press