EduTech Systems, Inc. You can reach us via:U.S. Mail: E-mail8325 Lee Blvd Paul R. Graff, Ph.D.- President Leawood, KS 66206 email: pgraff@edutechsystems.comTelephone:Main Office number: 1 (913) 649-7532 Fax number: 1 (913) 649-7491