 Over the last several years, several businesses have either left the area or relocated elsewhere.These businesses include Exide, makers of vehicle batteries, CAT, Case Corporation's closest competitor in American made construction equipment, and Lehigh-Leopold, makers of office furniture.This has left some former manufacturing plants around the city empty, but other businesses have moved into them; PPG, maker of auto safety glass has moved into the former CAT plant, and a warehouse has moved into the former Leopold building.