Richard J. Muller » Directory View All Clear Search Go back to directory. Add to Address Book. Richard J. Muller President Tri Dal, LLC. Work 540 Commerce St Southlake TX 76092 work Phone: 817-481-2886work Fax: 817-481-8195workfax Email: rick_muller@tridal.comINTERNET Website: www.tridal.com Website: Download vCard