4. Conveyors: power-driven
  5. Conveying apparatus entirely supported by mobile ground...
  6. Including gravity conveyor section or bin with driven conveyor

Hapman, Inc.

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Portable self-contained screw conveyor

Conveyors: power-driven – Conveying apparatus entirely supported by mobile ground... – Including gravity conveyor section or bin with driven conveyor
Reexamination Certificate

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Tensioning device for drag conveyor

Conveyors: power-driven – Conveyor section – Flight means in conduit for lifting flowable solid material
Reexamination Certificate

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