EXHIBIT 10.21 7 July 1993 Mr. Alain Cohen MIL 3 3400 International Dr., Suite 4L N.W., Washington D.C. 20008 Subject: Letter Agreement on Administration of Building Common Areas In connection with the Agreement of lease between INTELSAT and MIL 3,...Letter Agreement on Administration of Building Common Areas • March 15th, 2000 • Opnet Technologies Inc • District of Columbia
