TREA

David B. Stewart

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  • Newtyle, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Separating mechanism
    • Patent number 5,447,238
    • Issue date Sep 5, 1995
    • The Minister of Agriculture Fisheries and Food in Her Britannic Majesty's Gov...
    • Graham; J. Aldridge
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Opening roller for open end spinning machines
    • Patent number 5,005,259
    • Issue date Apr 9, 1991
    • William R. Stewart & Sons Ltd.
    • William R. Stewart
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Fiber opening devices
    • Patent number 4,869,060
    • Issue date Sep 26, 1989
    • Wm. R. Stewart & Sons (Hacklemakers) Limited
    • William R. Stewart
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Securing segments to a base
    • Patent number 4,825,511
    • Issue date May 2, 1989
    • Wm. R. Stewart & Sons (Hacklemakers) Limited
    • David B. Stewart
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Opening roller for open end spinning machines
    • Patent number 4,530,133
    • Issue date Jul 23, 1985
    • Wm. R. Stewart & Sons (Hacklemakers) Ltd.
    • William R. Stewart
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Lag or stave assembly for Kirschner beaters
    • Patent number 4,270,245
    • Issue date Jun 2, 1981
    • Wm. R. Stewart & Sons (Hacklemakers) Ltd.
    • David B. Stewart
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Carding apparatus
    • Patent number 4,162,559
    • Issue date Jul 31, 1979
    • Wm. R. Stewart & Sons (Hacklemakers) Limited
    • David B. Stewart
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING