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Donald James Maxwell

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  • London, EN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Buoyant wick holder
    • Patent number D247635
    • Issue date Mar 28, 1978
    • Rizla Limited
    • Donald James Maxwell
    • D48 -
  • Information Patent Grant

    Buoyant wick holder
    • Patent number D247193
    • Issue date Feb 7, 1978
    • Rizla Limited
    • Donald James Maxwell
    • D48 -