Product Keys for Autodesk 2010 products.

In order to authorize Autodesk's 2010 products you'll need both a serial number and product key. Product Keys can be found...

• On the back of the CD\DVD package.
  
• In emails from Autodesk fulfillment center
  
• Available through your subscription center.
• by calling the Autodesk Business Center 800-538-6401.

Below are a list of product keys for Revit 2010 products.

• 240B1 - Revit Architecture 2010
• 241B1 - AutoCAD Revit Architecture Suite 2010
• 595B1 - AutoCAD Revit Architecture Visualization Suite 2010
• 255B1 - Revit Structure 2010
• 256B1 - AutoCAD Revit Structure Suite 2010
• 297B1 - Revit MEP 2010
• 257B1 - AutoCAD Revit MEP Suite 2010
• 589B1 - Autodesk Revit MEP-B 2010

Here's a link to the Tech doc on autodesk's web site.

Here are a couple others found in discussion group threads.

• AutoCAD LT 2010 Product Key = 057B1
• AutoCAD 2010 Product Key = 001B1