6525-439445 (1796)    CATEGORY STOCK NUMBER (6917)

Name Value
NAME 6525-439445
LIFE EXPECTANCY 10
BRIEF DESCRIPTION SUBTRACTION UNIT RAD
NOMENCLATURE 
SUBTRACTION UNIT, RADIOGRAPHIC. AN APPARATUS DESIGNED TO SUBTRACT THE
DYE IMAGE FROM TWO SUPERIMPOSED RADIOGRAPHIC FILM, AND TRANSPOSE THE
IMAGE ONTO A TELEVISION MONITOR. CONSISTS ESSENTIALLY OF A CONTROL
CABINET/CONSOLE TELEVISION AND/OR POLAROID CAMERAS, POWER SUPPLY, AND
TELEVISION MONITOR(S).