Roger L. Lehman

Person

  • Newark, OH, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Sink-free panels

    • Patent number 4,051,290
    • Issue date Sep 27, 1977
    • Owens-Corning Fiberglas Corporation
    • Ralph B. Jutte
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL