55 / | HD | GAS SEPARATION |
282 | DF | WITH NONLIQUID CLEANING MEANS FOR SEPARATING MEDIA {13} |
295 | DF | .~ Solid agent cleaning member movingly contacts apparatus {2} |
296 | DF | .~.~ Agent has defined traversing motion relative to separating media {2} |
299 | .~.~.~ With resulting flexing or distortion of resilient or collapsible separating media |