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Graco Inc. is an American industrial company that specializes in the development and manufacturing of fluid-handling systems and products. The company is headquartered in Minneapolis, Minnesota , and markets its products to customers worldwide.
The spray drying technique was first described in 1860 with the first spray dryer instrument patented by Samuel Percy in 1872. [citation needed] With time, the spray drying method grew in popularity, at first mainly for milk production in the 1920s and during World War II, when there was a need to reduce the weight and volume of food and other materials.