A spreader assembly for spreading a material and for mounting to a bed of a truck is disclosed. The assembly includes a hopper and a frame having an upper rail for supporting the hopper in the bed of the truck. The frame includes a pair of front and rear posts extending downwardly from the upper rail...http://www.google.ca/patents/US6953163?utm_source=gb-gplus-sharePatent US6953163 - Truck bed mounted spreader