Wall - Conveyors, chutes, skids, guides, and ways patents
Composite Chute Liners
US 08485336 B2, July 16, 2013, Gregory George Tenold et al. / Spokane Industries (Spokane, US)
A material handling chute to direct flow of material, the material handling chute…
Garbage Chute Apparatus
US 08474591 B1, July 2, 2013, Donald D. Coples
A garbage chute apparatus, comprising, in combination:…
Patentorg has 2 documents under Wall Patents.