National Fuel Gas Co - Company Profile

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National Fuel Gas Co: Patents

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View up-to-date information on National Fuel Gas Co patents, including inventor and filing insights.

Publication Identifier	Document Type	Title	Classification-CPC	Publication Date
US5918618A	Grant	Natural gas shut off system	F16K31/1221; Y10T137/6969; Y10T137/0396; F16K1/123; F17D1/04	July 06, 1999
EP0816747A3	Search Report	Absperrvorrichtung für erdgas	Y10T137/6969; F16K1/12; F17D1/04; F16K1/123; Y10T137/0396; F16K31/1221	July 29, 1998
EP0816747A2	Application	Absperrvorrichtung für erdgas	Y10T137/6969; F16K1/12; F16K31/1221; F17D1/04; Y10T137/0396; F16K1/123	January 07, 1998
CA2202712A1	Application	Natural gas shut off system	F17D1/04; F16K31/1221; Y10T137/6969; Y10T137/0396; F17C1/02; F16K1/123	January 02, 1998

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