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By the early 1960s, Keith created KEITH Mfg. Co. and began work on a new material handling system. Early versions of the moving floor concept were crudely designed and impractical. Keith's ideas, along with those of two other innovators, lead to the
Clinkenbeard is a Rockford, IL-based company in the Manufacturing sector.
E Z Roll is a Detroit Lakes, MN-based company in the Manufacturing sector.
Thompson Lift Truck is a Macon, GA-based company in the Manufacturing sector.