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Inventor: Harold L. Lafferty

Address: Manvel, TX
No. of patents: 1
Last patent issue date: 06/28/1983

Number	Title	Issue Date
4390186	Metal-to-metal ribbed seal In order to provide a metal-to-metal annular seal for use in a high pressure environment typical of a wellhead assembly that is provided on a high pressure, high temperature gas well, especially circumferentially between the outside surface of a tubular p...	06/28/1983