CLEVELAND, Dec. 7 — Parker Hannifin Corporation (NYSE:PH) and FedEx Ground, a unit of FedEx Corp. (NYSE:FDX), today announced they have agreed to test a Class 6 vehicle employing hybrid hydraulic technology that seeks to improve fuel mileage by greater than 50 percent and significantly reduce engine emissions. The new vehicles will rely on a Parker series hybrid hydraulic drive that eliminates …
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