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Robust Fuel Nozzle Connection Indicator For CNG, Hydrogen And Gasoline Fueled Vehicles Disclosure Number: IPCOM000010914D
Publication Date: 2003-Jan-30

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At present, when a vehicle is being fueled with a liquid fuel (gasoline, diesel, etc.) or gasoline fuel (compressed natural gas or hydrogen), there is no mechanism to prevent the vahicle froom being started and/or driven away before the fueling operation is completed.