Andreas Derr

Person

  • Wutoschingen-Degernau, DE

Patents Grantslast 30 patents

  • Information Patent Grant

    Anemometer/Hygrometer instrument

    • Patent number D411807
    • Issue date Jul 6, 1999
    • Testo GmbH & Co.
    • Andreas Derr
    • D10 - Measuring, testing, or signalling instruments