198 / | HD | CONVEYORS: POWER-DRIVEN |
347.1 | DF | CONVEYOR SYSTEM HAVING AUXILIARY SECTION FOR STORING ITEMS MOVING BETWEEN SOURCE AND DESINATION {2} |
347.2 | DF | .~ Auxiliary section has the same entrance and exit {1} |
347.3 | .~.~ Auxiliary section has a reversibly driven conveyor for bidirectional article movement |