| 96 / | HD | GAS SEPARATION: APPARATUS | 
| 15 | DF | ELECTRIC FIELD SEPARATION APPARATUS (E.G., ELECTRICAL PRECIPITATOR, ELECTROSTATIC TYPE, ETC.) {17} | 
| 60 | DF | .~ Including gas flow distribution means {4} | 
| 65 | DF | .~.~ Collecting electrode modifies gas flow {5} | 
| 66 |  | .~.~.~ Total flow of gaseous fluid mixture through interstitial or porous collector {2} | 
| 67 | DF | .~.~.~.~> Zigzag running length | 
| 68 | DF | .~.~.~.~> Particle type collector |