US PATENT SUBCLASS 198 / 545
.~.~.~ Of the screw type

Current as of: June, 1999
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198 /   HD   CONVEYORS: POWER-DRIVEN

523  DF  CONVEYOR SYSTEM HAVING A GRAVITY CONVEYOR SECTION {11}
540  DF  .~ Gravity discharge material holder is source of supply, discharging by gravity to power-driven section {6}
543  DF  .~.~ With at least one more successive power-driven section {2}
545.~.~.~ Of the screw type

DEFINITION

Classification: 198/545

(under subclass 543) Apparatus wherein the successive power-driven section is a conveyor of the screw type.