4. Unearthing plants or buried objects
  5. Railroad ballast removal and assorting or separating

Knox Kershaw, Inc.

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Adzer mount assembly

Woodworking – Gaining machine – Traveling on railway track
Reexamination Certificate

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Ballast reconditioning apparatus

Unearthing plants or buried objects – Railroad ballast removal and assorting or separating
Patent

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Ballast reconditioning apparatus with multiple excavating wheels

Railways – Track layers
Patent

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Ballast regulator having improved track cleaning means

Excavating – Railway graders
Patent

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Ballast shoulder cleaner

Excavating – Railway graders – Side former
Patent

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