Mar 12, 2008  CAD/BIM Library of blocks 'WOODGRAIN HATCH' Free CAD+BIM Blocks, Models, Symbols and Details Free CAD and BIM blocks library - content for AutoCAD, AutoCAD LT, Revit, Inventor, Fusion 360 and other 2D and 3D CAD applications by Autodesk.

Search for 'acad.pat' in your autocad support location and open with Notepad.