Metal grain bins and component parts associated with metal grain bins; Prefabricated metal buildings and component parts associated with prefabricated metal buildings; Metal grain bin flooring and component parts associated with metal grain bin flooring; Metal grain bin floor supports and component parts associated with metal grain bin floor supports; Metal heating ducts; grain drying conduits being metal conduits for use in grain bins

Mechanical grain spreaders and component parts associated therewith; Power-operated grain stirrers and component parts associated therewith; Power-operated grain augers and component parts associated therewith; Grain moving equipment, namely, conveyor systems comprised of roller conveyors, line conveyors, and belt conveyors, drag chain systems comprised of drag chain conveyors, air systems comprised of compressed air machines for moving grain, auger systems comprised of augers for moving grain, sweep systems comprised of grain bin sweep systems for moving grain, bin sweep systems comprised of grain bin sweep systems for moving grain, grain spreader systems comprised of mechanical spreaders and electric spreaders and component parts associated therewith; Grain elevators and component parts associated therewith; Grain conveyors and component parts associated therewith; Mechanical discharging grain hoppers and component parts associated therewith; Pneumatic grain moving systems comprised primarily of pneumatic pumps, rotary blowers and also including metering devices in the nature of metering systems for metering grain in a grain handling system and component parts associated therewith; loading and unloading machines, namely, grain loading and unloading systems comprised of conveyor systems comprised of roller conveyors, line conveyors, and belt conveyors, drag chain systems comprised of drag chain conveyors, air systems comprised of compressed air machines, auger systems comprised of augers for moving grain, sweep systems comprised of grain bin sweep systems for moving grain, bin sweep systems comprised of grain bin sweep systems for moving grain, and component parts associated therewith; Grain sweeping machines and component parts associated therewith; Chain loop conveyors for use with grain and component parts associated therewith; Drag conveyors for use with grain and component parts associated therewith; double run conveyors for use with grain and component parts associated therewith; Bucket elevators for use with grain and component parts associated therewith; mechanical drive over hoppers for use with grain and component parts associated therewith; Power-operated transfer augers for use with grain and component parts associated therewith; Paddle sweeping machines for use with grain and component parts associated therewith

Electric fans; Electric heaters for aerating and drying grain, grain products and similar materials and component parts associated therewith; Furnaces, electric fans, electric fan covers, electric fan shutters and electric transitions for fans for drying grain and similar materials and component parts associated therewith; Grain dryers and tower dryers for drying grain and similar materials and component parts associated therewith; drying machines for agriculture, namely, grain drying systems comprised primarily of heaters, blowers, in the nature of hot air blowers for drying and conditioning grain; Grain dryers, and also including mechanical grain spreaders and component parts associated therewith