Radial grinding machines

Patents Grantslast 30 patents

  • Information Patent Grant

    Grinding arrangement for tool joints on a drill string

    • Patent number 8,997,851
    • Issue date Apr 7, 2015
    • Siem Wis AS
    • Per Espen Edvardsen
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Grinding machine

    • Patent number 6,443,818
    • Issue date Sep 3, 2002
    • Unova U.K. Limited
    • Russell Graham Bent
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Grinding machine

    • Patent number 5,971,836
    • Issue date Oct 26, 1999
    • Seiko Seiki Kabushiki Kaisha
    • Toshiharu Kogure
    • B24 - GRINDING POLISHING
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    2932926

    • Patent number 2,932,926
    • Issue date Apr 19, 1960
    • B24 - GRINDING POLISHING
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    2409340

    • Patent number 2,409,340
    • Issue date Oct 15, 1946
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    2221638

    • Patent number 2,221,638
    • Issue date Nov 12, 1940
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    2137140

    • Patent number 2,137,140
    • Issue date Nov 15, 1938
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    1517073

    • Patent number 1,517,073
    • Issue date Nov 25, 1924
    • B24 - GRINDING POLISHING

Patents Applicationslast 30 patents