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en.wikipedia.org/wiki/Dover_Corporation

Dover Corporation is an American conglomerate manufacturer of industrial products. Founded ... The company was shorthanded to OPW, and in 1949 one of its engineers, Leonard H. Duerr, invented the automatic shutoff fuel-dispensing nozzle valve. ... industries of building materials, equipment, and industrial components.

www.opwglobal.com

Components and systems for rail tank cars, tank trucks and tankers that ... Electronic tank gauges and fuel control systems to ensure customers know how much ...

www.opwglobal.com/products/us/retail-fueling-products

Retail Fueling Products. OPW is revolutionizing fueling operations worldwide ...

www.opwglobal.com/company/about-opw

OPW is a global leader in fluid handling, management, monitoring and control ...

www.opwglobal.com/contact/global-locations

Global Locations. OPW Corporate Headquarters OPW Retail Fueling – Above ...

www.opwglobal.com/products/us/retail-fueling-products/below-ground-products

Below Ground Products. OPW Retail Fueling is Leading the Way in the design ...

www.opwglobal.com/company/history

History. OPW History. For 125 years, OPW has been the global leader in fluid  ...

www.opwglobal.com/opw-retail-fueling

OPW Retail Fueling. OPW designs, manufactures, tests and provides ...

www.opwcareers.com

Co-ops provide a fresh perspective and energy that OPW truly values. ... the way in fluid handling niche markets that include Retail Fueling, Electronic Systems, ...