Below are the official product keys for the most common AutoCAD 2013 variants found in documentation from sources like CADABLE and Microsol Resources : 001E1 AutoCAD LT 2013: 057E1 AutoCAD Architecture 2013: 185E1 AutoCAD Civil 3D 2013: 237E1 AutoCAD Electrical 2013: 225E1 AutoCAD Mechanical 2013: 206E1 AutoCAD MEP 2013: 235E1 AutoCAD for Mac 2013: 777E1 How to Find Your Unique Key and Serial Number
: For original digital downloads, search your email records for the purchase confirmation or digital delivery receipt sent by Autodesk or an authorized reseller. Activation Requirements and Legacy Software Limitations product key of autocad 2013