EXHIBIT 4 ASSUMPTION OF RIGHTS AGREEMENT THIS ASSUMPTION OF RIGHTS AGREEMENT, made and entered into and to be effective as of January 30, 1998, by and between IFR SYSTEMS, INC., Delaware corporation ("IFR"), and HARRIS TRUST & SAVINGS BANK (the...Assumption of Rights Agreement • February 5th, 1998 • Ifr Systems Inc • Instruments for meas & testing of electricity & elec signals
