62 / | HD | REFRIGERATION |
404 | DF | GAS CONTROLLER OR DIRECTOR {5} |
407 | DF | .~ Cooled gas directed relative to cooled enclosure {7} |
413 | .~.~ Means verging gas streams within storage space {2} | |
414 | DF | .~.~.~> Gas flow forcing means |
415 | DF | .~.~.~> Space cooler units in separate streams {1} |