Z-Ultimate - Business Directory https://biz.prlog.org/tag/z-ultimate/ Z-Ultimate - Free business directory on PRLog.Org, latest companies listed first. 60 United Studios of Self Defense https://biz.prlog.org/UnitedStudios/ USSD, based in Irvine, California, was founded in 1988 by Charles Mattera, a 10th degree Black Belt in Shaolin Kempo-style karate. USSD has studios in the U.S. and Canada.Mon, 11 Oct 2010 20:39:42 GMT