198 / | HD | CONVEYORS: POWER-DRIVEN |
434 | DF | CONVEYOR SYSTEM FOR ARRANGING OR REARRANGING STREAM(S) OF ITEMS {5} |
456 | DF | .~ By laterally or vertically moving successive items in longitudinally moving stream {2} |
457.01 | DF | .~.~ To change direction of longitudinally moving stream {6} |
457.07 | .~.~.~ Nonsupporting rotary member causes direction change |