40 YEARS...COUNT ON IT

Machines for cleaning grain, namely, air/screen conditioners, aspirators, pre-cleaning scalpers, indent length separators, gravity separators, destoners, gravity tables, grain debearders, seed threshers, spiral separators, rotary granulators, hand test sieves, truck/bin probes, and screens being parts of machines; dust control systems comprised primarily of cyclones, fans, filters, and ducts; machines for the movement of granular materials, namely, bucket elevators; belt conveyors; pneumatic conveyors; ducts and fittings being parts of machines for movement of granular materials

design of handling systems for granular materials