EXHIBIT 10.4 Santa Clara Valley Regional Commercial Banking Office 121 Park Center Plaza, 3rd floor San Jose, CA 95172 December 15, 1998 Intevac, Inc. 3560 Bassett Street Santa Clara, CA 95054 Gentlemen: This letter is to confirm the changes agreed...Letter Agreement • March 12th, 1999 • Intevac Inc • Special industry machinery, nec
