Patents Assigned to Preston Products LLC
  • Automatic external defibrillator training device
    Patent number: D717444
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: November 11, 2014
    Assignee: Preston Products LLC
    Inventors: John J. Pastrick, Christopher E. Bryniarski, Mark E. Cook, Timothy E. Lint, Daniel R. Moon