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David Maxwell

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  • New York, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Disposable fluid dispenser
    • Patent number 4,116,571
    • Issue date Sep 26, 1978
    • David Maxwell
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Marker compass
    • Patent number 4,106,200
    • Issue date Aug 15, 1978
    • David Maxwell
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Marker/anti-marker system
    • Patent number 3,941,488
    • Issue date Mar 2, 1976
    • David Maxwell
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES