TREA

David Leonard Boutle

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  • Maldon, EN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polyurethane-polyanhydride subbing layer for photo sensitive elements
    • Patent number 4,093,458
    • Issue date Jun 6, 1978
    • Imperial Chemical Industries Limited
    • Patrick Terence McGrail
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Shoe uppers
    • Patent number 3,982,335
    • Issue date Sep 28, 1976
    • Porvair Limited
    • Victor Ralph Cunningham
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Artificial leather sheet material
    • Patent number 3,968,293
    • Issue date Jul 6, 1976
    • Porvair Limited
    • Victor Ralph Cunningham
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL