Patents Assigned to La Grouw Corporation Limited
  • Composite weatherboard
    Patent number: 5443878
    Abstract: A composite weatherboard having a timber member and a metal exterior sheath. The sheath is extruded with longitudinal projections which are fitted and pressed into permanent engagement with corresponding grooves or tongues provided in the timber member thereby obviating the need to use an adhesive or other fastener.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: August 22, 1995
    Assignee: La Grouw Corporation Limited
    Inventors: Kerry R. Treloar, Johannes La Grouw, Cornelius La Grouw