74204750
Sep 19, 1991
Nov 9, 1993
primarily non-metallic prefabricated patio rooms constructed of modular components, such modular components being insulated wall panels comprising wooden sheets with insulating polymeric material between the sheets, insulated roof panels comprising metallic sheets with insulating polymeric material between the sheets, and metallic beams for supporting the wall panels and the roof panels
Nonmetallic Building Materials