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John A. Furness

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  • Addiscombe, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for clearing settled sludge
    • Patent number 4,685,974
    • Issue date Aug 11, 1987
    • Butterworth Systems, Inc.
    • John A. Furness
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Sludge removal machine
    • Patent number 4,407,678
    • Issue date Oct 4, 1983
    • Butterworth Systems Inc.
    • John A. Furness
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...