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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
Lippman Milwaukee is a Cudahy, WI-based company in the Manufacturing sector.
Waukesha Alaska Corporation is a Anchorage, AK-based company in the Manufacturing sector.
Hahn Manufacturing Co is a Cleveland, OH-based company in the Manufacturing sector.
Pesco-Beam Environmental Solutions is a Roanoke, VA-based company in the Manufacturing sector.