TREA

Barker, Brettell & Duncan

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Patents Grantslast 30 patents

  • Information Patent Grant

    Lidded containers
    • Patent number 4,819,824
    • Issue date Apr 11, 1989
    • Barker, Brettell & Duncan
    • Karl Longbottom
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Method of making vehicle sunroofs
    • Patent number 4,815,194
    • Issue date Mar 28, 1989
    • Barker, Brettell & Duncan
    • John B. Lievesley
    • B60 - VEHICLES IN GENERAL