David T. McKeough

Person

  • Gibsonia, PA, US

Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    Poly (meth) acrylic photochromic coating

    • Publication number 20020076549
    • Publication date Jun 20, 2002
    • Cletus N. Welch
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...