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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
Harmsco Inc is a North Palm Beach, FL-based company in the Manufacturing sector.
Ludowici USA is a Chapmanville, WV-based company in the Manufacturing sector.
United Steel is a Long Beach, CA-based company in the Manufacturing sector.
Schaefer Entps Wolf Lk Inc is a Wolf Lake, IL-based company in the Manufacturing sector.