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Donald W. Hunter

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  • Guntersville, AL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fluid flow switching valve assembly and system
    • Patent number 4,925,464
    • Issue date May 15, 1990
    • Ryder International Corporation
    • Richard Rabenau
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Valve device for P.S.A. or R.P.S.A. systems
    • Patent number 4,877,429
    • Issue date Oct 31, 1989
    • Donald W. Hunter
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Lead screw driver
    • Patent number 4,782,726
    • Issue date Nov 8, 1988
    • Ryder Internation Corporation
    • Francis E. Ryder
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR