David Frank

Person

  • US

Patents Grantslast 30 patents

  • Information Patent Grant

    Racked power supply ventilation

    • Patent number 8,563,196
    • Issue date Oct 22, 2013
    • Hydrogenics Corporation
    • David George Frank
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Patents Applicationslast 30 patents