TREA

Dale E. Bertwell

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  • Denver, CO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hand-held brush
    • Patent number 5,485,807
    • Issue date Jan 23, 1996
    • B & G Ventures, Inc.
    • Dale E. Bertwell
    • A46 - BRUSHWARE
  • Information Patent Grant

    Photo-thermal therapeutic device and method
    • Patent number 5,358,503
    • Issue date Oct 25, 1994
    • Dale E. Bertwell
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE