TREA

M. E. Wright

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  • Apple Valley, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of making a filter device
    • Patent number 6,168,681
    • Issue date Jan 2, 2001
    • Donaldson & Company, Inc.
    • Cynthia D. Bellefeuille
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter device
    • Patent number 5,869,009
    • Issue date Feb 9, 1999
    • Donaldson Company, Inc.
    • Cynthia D. Bellefeuille
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL