US Patent:
20060288596, Dec 28, 2006
Inventors:
Jeffrey Markert - Gainesville GA, US
International Classification:
B43L 13/00
Abstract:
An apparatus for scoring drywall in both the horizontal and vertical directions with minimal repositioning of the apparatus between cuts; comprising a conventional T-square with a slide track rigidly affixed to the vertical portion and a body, slideably affixed to the track, containing two retractable blades positioned for cutting horizontally or vertically, the blades being retracted and extended by rotation of the blade knob located on an upper surface of the block portion.