198 / | HD | CONVEYORS: POWER-DRIVEN |
618 | DF | CONVEYOR SECTION {26} |
750.1 | DF | .~ Reciprocating conveying surface {7} |
750.2 | DF | .~.~ Surface formed by plural parallel elongated sections reciprocating horizontally {3} |
750.5 | DF | .~.~.~ Piston drive {1} |
750.6 | .~.~.~.~ Detachable drive |