250 / | HD | RADIANT ENERGY |
428 | DF | FLUENT MATERIAL CONTAINMENT, SUPPORT OR TRANSFER MEANS {4} |
432 R | .~ With irradiating source or radiating fluent material {4} | |
433 | DF | .~.~> Including a movable surface transfer means |
434 | DF | .~.~> Including a gravity-type transfer means |
435 | DF | .~.~> Including a flowthrough transfer means {3} |
432 PD | DF | .~.~> Parent-daughter isotope separators |