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Richard Criswell

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  • Las Vegas, NV, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Centering adaptor for flat-bladed drill bits
    • Patent number 8,348,559
    • Issue date Jan 8, 2013
    • Richard R. Criswell
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Water-handling system
    • Patent number 7,168,599
    • Issue date Jan 30, 2007
    • Richard Criswell
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS