Molly Cristin Hansen
Molly Cristin Hansen, Intellectual Property Law Attorney - Los Angeles, CA
Posted over 2 years ago.

This appears to be a link to patent (v. trademark) classifications.

Bruce E. Burdick
Bruce E. Burdick, Intellectual Property Law Attorney - Alton, IL
Posted over 2 years ago.

Molly is right, the correct link is the TIDM, found at http://tess2.uspto.gov/netahtml/tidm.html