David W. Root

Person

  • Marshfield, WI, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Control system for gap measuring

    • Patent number 6,860,030
    • Issue date Mar 1, 2005
    • Voith Paper, Inc.
    • Edwin X. Graf
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE