4. Excavating
  5. Cable-operated
  6. Boom-type

Joseph J. Colwell

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Belt drive with automatic belt tensioning

Excavating – Cable-operated – Boom-type
Reexamination Certificate

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Crawler shoe with peening pads in roller path

Wheel substitutes for land vehicles – Tracks or treads – With guide means for interfitting with sprocket wheel or roller
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2128410

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