198 / | HD | CONVEYORS: POWER-DRIVEN |
463.1 | DF | CONVEYOR SYSTEM FOR MOVING A SPECIFIC LOAD AS A SEPARATE UNIT {9} |
469.1 | DF | .~ System includes a rotating or endless carrier with a load engaging element {9} |
484.1 | .~.~ Elements comprise a nongripping pair of members which self-open as they pass through a curved path |