JLD Guitar Research & Development makes so many claims about what the JLD Bridge System can do for a guitar that some people simply refuse to believe us. We put this website together so we can show you exactly what the JLD Bridge System (US PATENT 5-260-505) is and how it works. Click here to view a JLD experimental bracing system JLD Guitar Research & Development PO Box 5764 Roswell, NM 1-575-622-3694 - Don Kendall email: spot@spotgrafix.com website creation by spot grafix, inc.