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